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Finding the Fourth Proportional to 272,189.88, 408,252.24 and 72,524.88

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Solution

The fourth proportional to 272,189.88, 408,252.24 and 72,524.88 is: 108,778.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,189.88 : 408,252.24 = 72,524.88 : x
  2. Step 2: Convert to fraction form
    272,189.88/408,252.24 = 72,524.88/x
  3. Step 3: Cross multiply
    272,189.88x = 408,252.24 × 72,524.88
  4. Step 4: Simplify right side
    272,189.88x = 29,608,444,715.73
  5. Step 5: Solve for x
    x = 29,608,444,715.73/272,189.88
  6. Step 6: Final answer
    x = 108,778.64

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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.