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Finding the Fourth Proportional to 252.05, 377.46 and 149.31

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Solution

The fourth proportional to 252.05, 377.46 and 149.31 is: 223.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.05 : 377.46 = 149.31 : x
  2. Step 2: Convert to fraction form
    252.05/377.46 = 149.31/x
  3. Step 3: Cross multiply
    252.05x = 377.46 × 149.31
  4. Step 4: Simplify right side
    252.05x = 56,358.55
  5. Step 5: Solve for x
    x = 56,358.55/252.05
  6. Step 6: Final answer
    x = 223.61

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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.