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Finding the Fourth Proportional to 323,489.52, 485,324.27 and 141,136.28

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Solution

The fourth proportional to 323,489.52, 485,324.27 and 141,136.28 is: 211,743.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,489.52 : 485,324.27 = 141,136.28 : x
  2. Step 2: Convert to fraction form
    323,489.52/485,324.27 = 141,136.28/x
  3. Step 3: Cross multiply
    323,489.52x = 485,324.27 × 141,136.28
  4. Step 4: Simplify right side
    323,489.52x = 68,496,862,061.52
  5. Step 5: Solve for x
    x = 68,496,862,061.52/323,489.52
  6. Step 6: Final answer
    x = 211,743.68

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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.