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Finding the Fourth Proportional to 272,353.30, 408,529.95 and 132,385.30

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Solution

The fourth proportional to 272,353.30, 408,529.95 and 132,385.30 is: 198,577.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,353.30 : 408,529.95 = 132,385.30 : x
  2. Step 2: Convert to fraction form
    272,353.30/408,529.95 = 132,385.30/x
  3. Step 3: Cross multiply
    272,353.30x = 408,529.95 × 132,385.30
  4. Step 4: Simplify right side
    272,353.30x = 54,083,359,989.74
  5. Step 5: Solve for x
    x = 54,083,359,989.74/272,353.30
  6. Step 6: Final answer
    x = 198,577.95

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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.