proportionate

例句：

1. 1.The books are proportionally priced to ensure fairness.
   这些书的价格是成比例的，以确保公平。
2. 2. The new design is proportional to the old one, making it easier to use.
   新设计与旧设计成比例，使用起来更方便。
3. 3. The company's profits have increased proportionally with the increase in sales.
   公司的盈利与销售额的增加成正比增长。