Home / 257,848-386,898

Finding the Third Proportional to 257,848 and 386,898

Calculator

Solution

The third proportional to 257,848 and 386,898 is: 580,536.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,848 : 386,898 = 386,898 : x
  2. Step 2: Convert to fraction form
    257,848/386,898 = 386,898/x
  3. Step 3: Cross multiply
    257,848x = 386,898 × 386,898
  4. Step 4: Simplify right side
    257,848x = 149,690,062,404
  5. Step 5: Solve for x
    x = 149,690,062,404/257,848
  6. Step 6: Final answer
    x = 580,536.06

Related Problems

Find third proportional to 128,924 and 193,449
Half scale
Find third proportional to 515,696 and 773,796
Double scale
Find third proportional to 257,850 and 386,901
Similar ratio
Find third proportional to 386,772 and 580,347
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.