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Finding the Fourth Proportional to 266,974.71, 400,451.71 and 98,422.15

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Solution

The fourth proportional to 266,974.71, 400,451.71 and 98,422.15 is: 147,629.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,974.71 : 400,451.71 = 98,422.15 : x
  2. Step 2: Convert to fraction form
    266,974.71/400,451.71 = 98,422.15/x
  3. Step 3: Cross multiply
    266,974.71x = 400,451.71 × 98,422.15
  4. Step 4: Simplify right side
    266,974.71x = 39,413,318,269.38
  5. Step 5: Solve for x
    x = 39,413,318,269.38/266,974.71
  6. Step 6: Final answer
    x = 147,629.41

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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.