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Finding the Fourth Proportional to 482,706.38, 666,139.38 and 267,866.40

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Solution

The fourth proportional to 482,706.38, 666,139.38 and 267,866.40 is: 369,658.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,706.38 : 666,139.38 = 267,866.40 : x
  2. Step 2: Convert to fraction form
    482,706.38/666,139.38 = 267,866.40/x
  3. Step 3: Cross multiply
    482,706.38x = 666,139.38 × 267,866.40
  4. Step 4: Simplify right side
    482,706.38x = 178,436,357,618.83
  5. Step 5: Solve for x
    x = 178,436,357,618.83/482,706.38
  6. Step 6: Final answer
    x = 369,658.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.