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Finding the Fourth Proportional to 266,725.52, 399,880.56 and 133,537.20

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Solution

The fourth proportional to 266,725.52, 399,880.56 and 133,537.20 is: 200,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,725.52 : 399,880.56 = 133,537.20 : x
  2. Step 2: Convert to fraction form
    266,725.52/399,880.56 = 133,537.20/x
  3. Step 3: Cross multiply
    266,725.52x = 399,880.56 × 133,537.20
  4. Step 4: Simplify right side
    266,725.52x = 53,398,930,316.83
  5. Step 5: Solve for x
    x = 53,398,930,316.83/266,725.52
  6. Step 6: Final answer
    x = 200,201.80

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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.