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Finding the Fourth Proportional to 247,909.57, 371,890.77 and 79,369.63

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Solution

The fourth proportional to 247,909.57, 371,890.77 and 79,369.63 is: 119,062.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,909.57 : 371,890.77 = 79,369.63 : x
  2. Step 2: Convert to fraction form
    247,909.57/371,890.77 = 79,369.63/x
  3. Step 3: Cross multiply
    247,909.57x = 371,890.77 × 79,369.63
  4. Step 4: Simplify right side
    247,909.57x = 29,516,832,815.32
  5. Step 5: Solve for x
    x = 29,516,832,815.32/247,909.57
  6. Step 6: Final answer
    x = 119,062.90

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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.