A proportional relationship is a relationship between two quantities in which their values increase or decrease at a constant rate. This means that as one quantity increases or decreases, the other quantity changes by the same factor. For example, if you increase the number of hours you work, your earnings would increase proportionally. If you decrease the amount of gas in your car, the distance you can travel would decrease proportionally. In a proportional relationship, the ratio between the two quantities remains constant.
