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Finding the Fourth Proportional to 485,252.92, 727,947.42 and 169,638.04

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Solution

The fourth proportional to 485,252.92, 727,947.42 and 169,638.04 is: 254,480.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,252.92 : 727,947.42 = 169,638.04 : x
  2. Step 2: Convert to fraction form
    485,252.92/727,947.42 = 169,638.04/x
  3. Step 3: Cross multiply
    485,252.92x = 727,947.42 × 169,638.04
  4. Step 4: Simplify right side
    485,252.92x = 123,487,573,551.86
  5. Step 5: Solve for x
    x = 123,487,573,551.86/485,252.92
  6. Step 6: Final answer
    x = 254,480.85

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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.