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Finding the Fourth Proportional to 247,591.20, 371,343.60 and 89,738.40

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Solution

The fourth proportional to 247,591.20, 371,343.60 and 89,738.40 is: 134,591.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,591.20 : 371,343.60 = 89,738.40 : x
  2. Step 2: Convert to fraction form
    247,591.20/371,343.60 = 89,738.40/x
  3. Step 3: Cross multiply
    247,591.20x = 371,343.60 × 89,738.40
  4. Step 4: Simplify right side
    247,591.20x = 33,323,780,514.24
  5. Step 5: Solve for x
    x = 33,323,780,514.24/247,591.20
  6. Step 6: Final answer
    x = 134,591.94

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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.