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Finding the Fourth Proportional to 267,279.52, 400,965.60 and 89,803.84

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Solution

The fourth proportional to 267,279.52, 400,965.60 and 89,803.84 is: 134,721.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,279.52 : 400,965.60 = 89,803.84 : x
  2. Step 2: Convert to fraction form
    267,279.52/400,965.60 = 89,803.84/x
  3. Step 3: Cross multiply
    267,279.52x = 400,965.60 × 89,803.84
  4. Step 4: Simplify right side
    267,279.52x = 36,008,250,587.90
  5. Step 5: Solve for x
    x = 36,008,250,587.90/267,279.52
  6. Step 6: Final answer
    x = 134,721.32

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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.