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Finding the Fourth Proportional to 247,431.76, 371,344.44 and 89,705.20

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Solution

The fourth proportional to 247,431.76, 371,344.44 and 89,705.20 is: 134,629.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,431.76 : 371,344.44 = 89,705.20 : x
  2. Step 2: Convert to fraction form
    247,431.76/371,344.44 = 89,705.20/x
  3. Step 3: Cross multiply
    247,431.76x = 371,344.44 × 89,705.20
  4. Step 4: Simplify right side
    247,431.76x = 33,311,527,259.09
  5. Step 5: Solve for x
    x = 33,311,527,259.09/247,431.76
  6. Step 6: Final answer
    x = 134,629.15

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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.