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Finding the Fourth Proportional to 267,427.80, 400,995.90 and 89,843.40

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Solution

The fourth proportional to 267,427.80, 400,995.90 and 89,843.40 is: 134,716.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,427.80 : 400,995.90 = 89,843.40 : x
  2. Step 2: Convert to fraction form
    267,427.80/400,995.90 = 89,843.40/x
  3. Step 3: Cross multiply
    267,427.80x = 400,995.90 × 89,843.40
  4. Step 4: Simplify right side
    267,427.80x = 36,026,835,042.06
  5. Step 5: Solve for x
    x = 36,026,835,042.06/267,427.80
  6. Step 6: Final answer
    x = 134,716.12

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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.