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Finding the Fourth Proportional to 179.42, 249.28 and 176.38

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Solution

The fourth proportional to 179.42, 249.28 and 176.38 is: 245.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.42 : 249.28 = 176.38 : x
  2. Step 2: Convert to fraction form
    179.42/249.28 = 176.38/x
  3. Step 3: Cross multiply
    179.42x = 249.28 × 176.38
  4. Step 4: Simplify right side
    179.42x = 43,966.94
  5. Step 5: Solve for x
    x = 43,966.94/179.42
  6. Step 6: Final answer
    x = 245.06

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.