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Finding the Fourth Proportional to 331.97, 498.04 and 149.49

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Solution

The fourth proportional to 331.97, 498.04 and 149.49 is: 224.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    331.97 : 498.04 = 149.49 : x
  2. Step 2: Convert to fraction form
    331.97/498.04 = 149.49/x
  3. Step 3: Cross multiply
    331.97x = 498.04 × 149.49
  4. Step 4: Simplify right side
    331.97x = 74,452.00
  5. Step 5: Solve for x
    x = 74,452.00/331.97
  6. Step 6: Final answer
    x = 224.27

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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.