Finding the Third Proportional to 201,918.75 and 312,612.75
Calculator
Solution
The third proportional to 201,918.75 and 312,612.75 is: 483,990.37
Step by Step Solution
- Step 1: Write the proportion equation
201,918.75 : 312,612.75 = 312,612.75 : x - Step 2: Convert to fraction form
201,918.75/312,612.75 = 312,612.75/x - Step 3: Cross multiply
201,918.75x = 312,612.75 × 312,612.75 - Step 4: Simplify right side
201,918.75x = 97,726,731,462.56 - Step 5: Solve for x
x = 97,726,731,462.56/201,918.75 - Step 6: Final answer
x = 483,990.37
Related Problems
Find third proportional to 100,959.38 and 156,306.38
Half scale
Find third proportional to 403,837.50 and 625,225.50
Double scale
Find third proportional to 201,921 and 312,616
Similar ratio
Find third proportional to 302,878.13 and 468,919.13
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.