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Finding the Fourth Proportional to 149.98, 224.80 and 132.90

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Solution

The fourth proportional to 149.98, 224.80 and 132.90 is: 199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.98 : 224.80 = 132.90 : x
  2. Step 2: Convert to fraction form
    149.98/224.80 = 132.90/x
  3. Step 3: Cross multiply
    149.98x = 224.80 × 132.90
  4. Step 4: Simplify right side
    149.98x = 29,875.92
  5. Step 5: Solve for x
    x = 29,875.92/149.98
  6. Step 6: Final answer
    x = 199.20

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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.