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Finding the Fourth Proportional to 247,909.56, 371,890.78 and 79,369.62

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Solution

The fourth proportional to 247,909.56, 371,890.78 and 79,369.62 is: 119,062.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,909.56 : 371,890.78 = 79,369.62 : x
  2. Step 2: Convert to fraction form
    247,909.56/371,890.78 = 79,369.62/x
  3. Step 3: Cross multiply
    247,909.56x = 371,890.78 × 79,369.62
  4. Step 4: Simplify right side
    247,909.56x = 29,516,829,890.10
  5. Step 5: Solve for x
    x = 29,516,829,890.10/247,909.56
  6. Step 6: Final answer
    x = 119,062.89

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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.