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Finding the Fourth Proportional to 247,395.87, 371,042.78 and 120,906.27

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Solution

The fourth proportional to 247,395.87, 371,042.78 and 120,906.27 is: 181,334.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,395.87 : 371,042.78 = 120,906.27 : x
  2. Step 2: Convert to fraction form
    247,395.87/371,042.78 = 120,906.27/x
  3. Step 3: Cross multiply
    247,395.87x = 371,042.78 × 120,906.27
  4. Step 4: Simplify right side
    247,395.87x = 44,861,397,935.70
  5. Step 5: Solve for x
    x = 44,861,397,935.70/247,395.87
  6. Step 6: Final answer
    x = 181,334.47

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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.