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Finding the Fourth Proportional to 487,354.64, 731,157.72 and 150,387.92

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Solution

The fourth proportional to 487,354.64, 731,157.72 and 150,387.92 is: 225,620.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,354.64 : 731,157.72 = 150,387.92 : x
  2. Step 2: Convert to fraction form
    487,354.64/731,157.72 = 150,387.92/x
  3. Step 3: Cross multiply
    487,354.64x = 731,157.72 × 150,387.92
  4. Step 4: Simplify right side
    487,354.64x = 109,957,288,702.74
  5. Step 5: Solve for x
    x = 109,957,288,702.74/487,354.64
  6. Step 6: Final answer
    x = 225,620.69

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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.