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Finding the Fourth Proportional to 247,505.76, 371,259.72 and 89,672.40

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Solution

The fourth proportional to 247,505.76, 371,259.72 and 89,672.40 is: 134,508.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,505.76 : 371,259.72 = 89,672.40 : x
  2. Step 2: Convert to fraction form
    247,505.76/371,259.72 = 89,672.40/x
  3. Step 3: Cross multiply
    247,505.76x = 371,259.72 × 89,672.40
  4. Step 4: Simplify right side
    247,505.76x = 33,291,750,115.73
  5. Step 5: Solve for x
    x = 33,291,750,115.73/247,505.76
  6. Step 6: Final answer
    x = 134,508.99

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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.