Finding the Third Proportional to 410 and 518
Calculator
Solution
The third proportional to 410 and 518 is: 654.45
Step by Step Solution
- Step 1: Write the proportion equation
410 : 518 = 518 : x - Step 2: Convert to fraction form
410/518 = 518/x - Step 3: Cross multiply
410x = 518 × 518 - Step 4: Simplify right side
410x = 268,324 - Step 5: Solve for x
x = 268,324/410 - Step 6: Final answer
x = 654.45
Related Problems
Find third proportional to 205 and 259
Half scale
Find third proportional to 820 and 1,036
Double scale
Find third proportional to 412 and 521
Similar ratio
Find third proportional to 615 and 777
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.