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Finding the Fourth Proportional to 149.55, 225.44 and 133.89

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Solution

The fourth proportional to 149.55, 225.44 and 133.89 is: 201.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.55 : 225.44 = 133.89 : x
  2. Step 2: Convert to fraction form
    149.55/225.44 = 133.89/x
  3. Step 3: Cross multiply
    149.55x = 225.44 × 133.89
  4. Step 4: Simplify right side
    149.55x = 30,183.49
  5. Step 5: Solve for x
    x = 30,183.49/149.55
  6. Step 6: Final answer
    x = 201.83

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.