Home / 454,406.92-681,612-138,862.52

Finding the Fourth Proportional to 454,406.92, 681,612 and 138,862.52

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Solution

The fourth proportional to 454,406.92, 681,612 and 138,862.52 is: 208,294.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,406.92 : 681,612 = 138,862.52 : x
  2. Step 2: Convert to fraction form
    454,406.92/681,612 = 138,862.52/x
  3. Step 3: Cross multiply
    454,406.92x = 681,612 × 138,862.52
  4. Step 4: Simplify right side
    454,406.92x = 94,650,359,982.24
  5. Step 5: Solve for x
    x = 94,650,359,982.24/454,406.92
  6. Step 6: Final answer
    x = 208,294.28

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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.