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Finding the Fourth Proportional to 272,136.59, 408,291.00 and 122,389.97

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Solution

The fourth proportional to 272,136.59, 408,291.00 and 122,389.97 is: 183,623.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,136.59 : 408,291.00 = 122,389.97 : x
  2. Step 2: Convert to fraction form
    272,136.59/408,291.00 = 122,389.97/x
  3. Step 3: Cross multiply
    272,136.59x = 408,291.00 × 122,389.97
  4. Step 4: Simplify right side
    272,136.59x = 49,970,723,037.49
  5. Step 5: Solve for x
    x = 49,970,723,037.49/272,136.59
  6. Step 6: Final answer
    x = 183,623.68

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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.