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Finding the Fourth Proportional to 148.92, 223.32 and 141.66

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Solution

The fourth proportional to 148.92, 223.32 and 141.66 is: 212.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    148.92 : 223.32 = 141.66 : x
  2. Step 2: Convert to fraction form
    148.92/223.32 = 141.66/x
  3. Step 3: Cross multiply
    148.92x = 223.32 × 141.66
  4. Step 4: Simplify right side
    148.92x = 31,635.51
  5. Step 5: Solve for x
    x = 31,635.51/148.92
  6. Step 6: Final answer
    x = 212.43

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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.