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Finding the Fourth Proportional to 249.39, 343.89 and 175.68

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Solution

The fourth proportional to 249.39, 343.89 and 175.68 is: 242.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.39 : 343.89 = 175.68 : x
  2. Step 2: Convert to fraction form
    249.39/343.89 = 175.68/x
  3. Step 3: Cross multiply
    249.39x = 343.89 × 175.68
  4. Step 4: Simplify right side
    249.39x = 60,414.60
  5. Step 5: Solve for x
    x = 60,414.60/249.39
  6. Step 6: Final answer
    x = 242.25

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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.