Finding the Third Proportional to 85,780 and 185,872
Calculator
Solution
The third proportional to 85,780 and 185,872 is: 402,755.89
Step by Step Solution
- Step 1: Write the proportion equation
85,780 : 185,872 = 185,872 : x - Step 2: Convert to fraction form
85,780/185,872 = 185,872/x - Step 3: Cross multiply
85,780x = 185,872 × 185,872 - Step 4: Simplify right side
85,780x = 34,548,400,384 - Step 5: Solve for x
x = 34,548,400,384/85,780 - Step 6: Final answer
x = 402,755.89
Related Problems
Find third proportional to 42,890 and 92,936
Half scale
Find third proportional to 171,560 and 371,744
Double scale
Find third proportional to 85,782 and 185,876
Similar ratio
Find third proportional to 128,670 and 278,808
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.