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Finding the Fourth Proportional to 307,542.88, 424,423.92 and 173,404

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Solution

The fourth proportional to 307,542.88, 424,423.92 and 173,404 is: 239,305.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,542.88 : 424,423.92 = 173,404 : x
  2. Step 2: Convert to fraction form
    307,542.88/424,423.92 = 173,404/x
  3. Step 3: Cross multiply
    307,542.88x = 424,423.92 × 173,404
  4. Step 4: Simplify right side
    307,542.88x = 73,596,805,423.68
  5. Step 5: Solve for x
    x = 73,596,805,423.68/307,542.88
  6. Step 6: Final answer
    x = 239,305.83

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