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Finding the Fourth Proportional to 249.13, 344.15 and 175.42

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Solution

The fourth proportional to 249.13, 344.15 and 175.42 is: 242.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.13 : 344.15 = 175.42 : x
  2. Step 2: Convert to fraction form
    249.13/344.15 = 175.42/x
  3. Step 3: Cross multiply
    249.13x = 344.15 × 175.42
  4. Step 4: Simplify right side
    249.13x = 60,370.79
  5. Step 5: Solve for x
    x = 60,370.79/249.13
  6. Step 6: Final answer
    x = 242.33

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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.