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Finding the Fourth Proportional to 252,242.76, 378,385.98 and 72,329.04

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Solution

The fourth proportional to 252,242.76, 378,385.98 and 72,329.04 is: 108,499.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,242.76 : 378,385.98 = 72,329.04 : x
  2. Step 2: Convert to fraction form
    252,242.76/378,385.98 = 72,329.04/x
  3. Step 3: Cross multiply
    252,242.76x = 378,385.98 × 72,329.04
  4. Step 4: Simplify right side
    252,242.76x = 27,368,294,682.86
  5. Step 5: Solve for x
    x = 27,368,294,682.86/252,242.76
  6. Step 6: Final answer
    x = 108,499.82

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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.