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Finding the Fourth Proportional to 267,135.28, 400,640.01 and 77,545.60

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Solution

The fourth proportional to 267,135.28, 400,640.01 and 77,545.60 is: 116,300.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,135.28 : 400,640.01 = 77,545.60 : x
  2. Step 2: Convert to fraction form
    267,135.28/400,640.01 = 77,545.60/x
  3. Step 3: Cross multiply
    267,135.28x = 400,640.01 × 77,545.60
  4. Step 4: Simplify right side
    267,135.28x = 31,067,869,959.46
  5. Step 5: Solve for x
    x = 31,067,869,959.46/267,135.28
  6. Step 6: Final answer
    x = 116,300.14

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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.