proportional - one of the quantities in a mathematical proportion. quantity - the concept that something has a magnitude and can be represented in mathematical expressions by a constant or a variable.
The third trimester is when women should eat around 500 extra calories per day. Special Considerations. While the 300 calorie per day example above is just an example, there are some special cases in which a woman might need to adjust her daily calorie intake to fit her needs.
Per me using math... Divide 40 weeks of gestation by 3 = 13.33 per trimester! Week 1 to 13.33 weeks is 1st Trimester. 13.34 weeks to 26.67 weeks is 2nd Trimester and 26.68 to 40.00 Weeks is 3rd Trimester.