1
increase/decrease proportionally
表示数量随另一因素以相同比例变化。
Costs increase proportionally with the number of employees.
成本随员工人数按比例增加。
按比例地；相应地
先理解核心含义，再看它在真实句子里的用法。
按比例地；相应地
to a proportionate degree; in proportion
Costs increase proportionally with the number of employees.
成本随员工人数按比例增加。
按比例地；相应地；相对适应地。
In proportion; in due degree; adapted relatively.
The amount of tax you pay increases proportionally with your income.
你缴纳的税额随着收入按比例增加。
When the company grew, the number of employees expanded proportionally.
公司发展时，员工数量也相应地增加。
Food costs usually rise proportionally to the size of the family.
食品开支通常随家庭规模的大小按比例上升。
表示数量随另一因素以相同比例变化。
Costs increase proportionally with the number of employees.
成本随员工人数按比例增加。
用于形容词前，表示在程度上按比例地高或低。
The risk is proportionally higher for older drivers.
年龄较大的驾驶员所面临的风险相应更高。
to 后接比较或分配的依据对象。
Benefits are distributed proportionally to each person's contribution.
福利按每个人的贡献比例分配。
Not this
The punishment should be proportionally to the crime.
Use this
The punishment should be proportional to the crime.
这里 be 动词后需要形容词作表语；proportionally 是副词，不能作表语，应改为 proportional。中文的“成比例地”容易误导学习者，但表语位置必须用形容词。
Not this
There was a proportionally increase in sales.
Use this
There was a proportional increase in sales.
increase 在这里是名词，需要形容词修饰；proportionally 是副词，不能修饰名词，应改用 proportional。这是把副词误用在名词前的典型错误。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
按比例分配
The bonus will be proportionally distributed among all team members.
奖金将按比例分配给所有团队成员。
成比例相关
In this experiment, the two variables are proportionally related.
在这个实验中，这两个变量成比例相关。
按比例变化
As the temperature rises, the pressure varies proportionally.
随着温度升高，压力按比例变化。
成比例地更大
The image appears proportionally larger when displayed on a high-resolution screen.
在高分辨率屏幕上显示时，图像成比例地显得更大。
按比例增加
If you double the ingredients, the cooking time will increase proportionally.
如果配料加倍，烹饪时间将按比例增加。
Use proportionally naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
proportion 是比例；想象按比例缩放图片：宽高一起变，不扭曲。
语域：neutral 常见场景：数学或统计表述、经济与政策讨论、日常比例比较 该词表示“按比例地”，语气中性，通常用于说明数量、程度或大小随另一因素相应变化；在正式写作和日常口语中都可见到，没有明显的语域限制。
所列单词中除 proportionately 外均以 -tionally 结尾，但它们与 proportionally 并不严格押韵，因为重读元音不同（nationally 为 /æ/，traditionally/conditionally 为 /ɪ/，exceptionally 为 /ɛ/，optionally 为 /ɒ/）。proportionately 是最接近的拼写对照词，与 proportionally 共享重读元音 /ɔː/，但结尾是 /ʃənətli/ 而非 /ʃənli/。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.