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Finding the Fourth Proportional to 247,757.50, 371,691.64 and 79,287.94

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Solution

The fourth proportional to 247,757.50, 371,691.64 and 79,287.94 is: 118,949.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,757.50 : 371,691.64 = 79,287.94 : x
  2. Step 2: Convert to fraction form
    247,757.50/371,691.64 = 79,287.94/x
  3. Step 3: Cross multiply
    247,757.50x = 371,691.64 × 79,287.94
  4. Step 4: Simplify right side
    247,757.50x = 29,470,664,450.82
  5. Step 5: Solve for x
    x = 29,470,664,450.82/247,757.50
  6. Step 6: Final answer
    x = 118,949.64

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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.