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Finding the Fourth Proportional to 272,037.60, 408,055.80 and 72,358.02

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Solution

The fourth proportional to 272,037.60, 408,055.80 and 72,358.02 is: 108,536.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,037.60 : 408,055.80 = 72,358.02 : x
  2. Step 2: Convert to fraction form
    272,037.60/408,055.80 = 72,358.02/x
  3. Step 3: Cross multiply
    272,037.60x = 408,055.80 × 72,358.02
  4. Step 4: Simplify right side
    272,037.60x = 29,526,109,737.52
  5. Step 5: Solve for x
    x = 29,526,109,737.52/272,037.60
  6. Step 6: Final answer
    x = 108,536.87

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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.