Finding the Third Proportional to 521 and 625
Calculator
Solution
The third proportional to 521 and 625 is: 749.76
Step by Step Solution
- Step 1: Write the proportion equation
521 : 625 = 625 : x - Step 2: Convert to fraction form
521/625 = 625/x - Step 3: Cross multiply
521x = 625 × 625 - Step 4: Simplify right side
521x = 390,625 - Step 5: Solve for x
x = 390,625/521 - Step 6: Final answer
x = 749.76
Related Problems
Find third proportional to 260.50 and 312.50
Half scale
Find third proportional to 1,042 and 1,250
Double scale
Find third proportional to 523 and 627
Similar ratio
Find third proportional to 781.50 and 937.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.