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Finding the Fourth Proportional to 355.97, 534.08 and 150.55

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Solution

The fourth proportional to 355.97, 534.08 and 150.55 is: 225.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.97 : 534.08 = 150.55 : x
  2. Step 2: Convert to fraction form
    355.97/534.08 = 150.55/x
  3. Step 3: Cross multiply
    355.97x = 534.08 × 150.55
  4. Step 4: Simplify right side
    355.97x = 80,404.79
  5. Step 5: Solve for x
    x = 80,404.79/355.97
  6. Step 6: Final answer
    x = 225.87

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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.