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Finding the Fourth Proportional to 252.22, 379.03 and 149.51

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Solution

The fourth proportional to 252.22, 379.03 and 149.51 is: 224.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.22 : 379.03 = 149.51 : x
  2. Step 2: Convert to fraction form
    252.22/379.03 = 149.51/x
  3. Step 3: Cross multiply
    252.22x = 379.03 × 149.51
  4. Step 4: Simplify right side
    252.22x = 56,668.78
  5. Step 5: Solve for x
    x = 56,668.78/252.22
  6. Step 6: Final answer
    x = 224.68

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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.