Finding the Third Proportional to 212,221.13 and 318,331.69
Calculator
Solution
The third proportional to 212,221.13 and 318,331.69 is: 477,497.53
Step by Step Solution
- Step 1: Write the proportion equation
212,221.13 : 318,331.69 = 318,331.69 : x - Step 2: Convert to fraction form
212,221.13/318,331.69 = 318,331.69/x - Step 3: Cross multiply
212,221.13x = 318,331.69 × 318,331.69 - Step 4: Simplify right side
212,221.13x = 101,335,063,266.60 - Step 5: Solve for x
x = 101,335,063,266.60/212,221.13 - Step 6: Final answer
x = 477,497.53
Related Problems
Find third proportional to 106,110.56 and 159,165.84
Half scale
Find third proportional to 424,442.25 and 636,663.38
Double scale
Find third proportional to 212,223 and 318,335
Similar ratio
Find third proportional to 318,331.69 and 477,497.53
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.