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Finding the Fourth Proportional to 392,371.26, 588,491.01 and 111,821.82

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Solution

The fourth proportional to 392,371.26, 588,491.01 and 111,821.82 is: 167,713.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,371.26 : 588,491.01 = 111,821.82 : x
  2. Step 2: Convert to fraction form
    392,371.26/588,491.01 = 111,821.82/x
  3. Step 3: Cross multiply
    392,371.26x = 588,491.01 × 111,821.82
  4. Step 4: Simplify right side
    392,371.26x = 65,806,135,791.84
  5. Step 5: Solve for x
    x = 65,806,135,791.84/392,371.26
  6. Step 6: Final answer
    x = 167,713.95

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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.