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Finding the Fourth Proportional to 272,229.54, 408,363.75 and 72,548.88

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Solution

The fourth proportional to 272,229.54, 408,363.75 and 72,548.88 is: 108,828.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,229.54 : 408,363.75 = 72,548.88 : x
  2. Step 2: Convert to fraction form
    272,229.54/408,363.75 = 72,548.88/x
  3. Step 3: Cross multiply
    272,229.54x = 408,363.75 × 72,548.88
  4. Step 4: Simplify right side
    272,229.54x = 29,626,332,695.10
  5. Step 5: Solve for x
    x = 29,626,332,695.10/272,229.54
  6. Step 6: Final answer
    x = 108,828.50

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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.