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Finding the Fourth Proportional to 267,625.60, 400,660.80 and 178,979.20

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Solution

The fourth proportional to 267,625.60, 400,660.80 and 178,979.20 is: 267,948.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,625.60 : 400,660.80 = 178,979.20 : x
  2. Step 2: Convert to fraction form
    267,625.60/400,660.80 = 178,979.20/x
  3. Step 3: Cross multiply
    267,625.60x = 400,660.80 × 178,979.20
  4. Step 4: Simplify right side
    267,625.60x = 71,709,949,455.36
  5. Step 5: Solve for x
    x = 71,709,949,455.36/267,625.60
  6. Step 6: Final answer
    x = 267,948.77

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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.