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Finding the Fourth Proportional to 249.86, 344.66 and 176.24

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Solution

The fourth proportional to 249.86, 344.66 and 176.24 is: 243.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.86 : 344.66 = 176.24 : x
  2. Step 2: Convert to fraction form
    249.86/344.66 = 176.24/x
  3. Step 3: Cross multiply
    249.86x = 344.66 × 176.24
  4. Step 4: Simplify right side
    249.86x = 60,742.88
  5. Step 5: Solve for x
    x = 60,742.88/249.86
  6. Step 6: Final answer
    x = 243.11

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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.