1. Correctly sized in comparison with something else. Hey, that guy you drew is not in proportion with the buildings in the background.

2. In a realistic or appropriate manner, as opposed to granting something more importance, negativity, or significance than it actually warrants. I know we're all shocked by the announcement, but let's try to keep it in proportion—no one is losing their job, and no one is getting a decrease in pay. In reality, it's just a rearrangement of responsibilities. In the age of social media, people seem incapable of keeping current events in proportion.