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Finding the Fourth Proportional to 249.14, 344.03 and 166.38

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Solution

The fourth proportional to 249.14, 344.03 and 166.38 is: 229.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.14 : 344.03 = 166.38 : x
  2. Step 2: Convert to fraction form
    249.14/344.03 = 166.38/x
  3. Step 3: Cross multiply
    249.14x = 344.03 × 166.38
  4. Step 4: Simplify right side
    249.14x = 57,238.88
  5. Step 5: Solve for x
    x = 57,238.88/249.14
  6. Step 6: Final answer
    x = 229.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.