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Finding the Fourth Proportional to 423,691.27, 635,558.78 and 108,150.91

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Solution

The fourth proportional to 423,691.27, 635,558.78 and 108,150.91 is: 162,231.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,691.27 : 635,558.78 = 108,150.91 : x
  2. Step 2: Convert to fraction form
    423,691.27/635,558.78 = 108,150.91/x
  3. Step 3: Cross multiply
    423,691.27x = 635,558.78 × 108,150.91
  4. Step 4: Simplify right side
    423,691.27x = 68,736,259,096.97
  5. Step 5: Solve for x
    x = 68,736,259,096.97/423,691.27
  6. Step 6: Final answer
    x = 162,231.95

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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.