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Finding the Fourth Proportional to 148.92, 222.24 and 147.96

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Solution

The fourth proportional to 148.92, 222.24 and 147.96 is: 220.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    148.92 : 222.24 = 147.96 : x
  2. Step 2: Convert to fraction form
    148.92/222.24 = 147.96/x
  3. Step 3: Cross multiply
    148.92x = 222.24 × 147.96
  4. Step 4: Simplify right side
    148.92x = 32,882.63
  5. Step 5: Solve for x
    x = 32,882.63/148.92
  6. Step 6: Final answer
    x = 220.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.