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Finding the Fourth Proportional to 272,546.87, 408,789.15 and 72,882.82

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Solution

The fourth proportional to 272,546.87, 408,789.15 and 72,882.82 is: 109,315.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,546.87 : 408,789.15 = 72,882.82 : x
  2. Step 2: Convert to fraction form
    272,546.87/408,789.15 = 72,882.82/x
  3. Step 3: Cross multiply
    272,546.87x = 408,789.15 × 72,882.82
  4. Step 4: Simplify right side
    272,546.87x = 29,793,706,037.40
  5. Step 5: Solve for x
    x = 29,793,706,037.40/272,546.87
  6. Step 6: Final answer
    x = 109,315.90

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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.