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Finding the Fourth Proportional to 418,791.29, 626,601.71 and 248,104.64

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Solution

The fourth proportional to 418,791.29, 626,601.71 and 248,104.64 is: 371,217.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,791.29 : 626,601.71 = 248,104.64 : x
  2. Step 2: Convert to fraction form
    418,791.29/626,601.71 = 248,104.64/x
  3. Step 3: Cross multiply
    418,791.29x = 626,601.71 × 248,104.64
  4. Step 4: Simplify right side
    418,791.29x = 155,462,790,442.41
  5. Step 5: Solve for x
    x = 155,462,790,442.41/418,791.29
  6. Step 6: Final answer
    x = 371,217.83

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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.