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Finding the Fourth Proportional to 439,691.52, 659,585.07 and 140,101.68

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Solution

The fourth proportional to 439,691.52, 659,585.07 and 140,101.68 is: 210,167.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,691.52 : 659,585.07 = 140,101.68 : x
  2. Step 2: Convert to fraction form
    439,691.52/659,585.07 = 140,101.68/x
  3. Step 3: Cross multiply
    439,691.52x = 659,585.07 × 140,101.68
  4. Step 4: Simplify right side
    439,691.52x = 92,408,976,409.92
  5. Step 5: Solve for x
    x = 92,408,976,409.92/439,691.52
  6. Step 6: Final answer
    x = 210,167.75

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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.