Finding the Third Proportional to 412 and 516
Calculator
Solution
The third proportional to 412 and 516 is: 646.25
Step by Step Solution
- Step 1: Write the proportion equation
412 : 516 = 516 : x - Step 2: Convert to fraction form
412/516 = 516/x - Step 3: Cross multiply
412x = 516 × 516 - Step 4: Simplify right side
412x = 266,256 - Step 5: Solve for x
x = 266,256/412 - Step 6: Final answer
x = 646.25
Related Problems
Find third proportional to 206 and 258
Half scale
Find third proportional to 824 and 1,032
Double scale
Find third proportional to 414 and 519
Similar ratio
Find third proportional to 618 and 774
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.