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Finding the Fourth Proportional to 331.27, 496.99 and 100.16

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Solution

The fourth proportional to 331.27, 496.99 and 100.16 is: 150.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    331.27 : 496.99 = 100.16 : x
  2. Step 2: Convert to fraction form
    331.27/496.99 = 100.16/x
  3. Step 3: Cross multiply
    331.27x = 496.99 × 100.16
  4. Step 4: Simplify right side
    331.27x = 49,778.52
  5. Step 5: Solve for x
    x = 49,778.52/331.27
  6. Step 6: Final answer
    x = 150.27

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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.