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Finding the Fourth Proportional to 179.14, 248.47 and 171.85

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Solution

The fourth proportional to 179.14, 248.47 and 171.85 is: 238.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.14 : 248.47 = 171.85 : x
  2. Step 2: Convert to fraction form
    179.14/248.47 = 171.85/x
  3. Step 3: Cross multiply
    179.14x = 248.47 × 171.85
  4. Step 4: Simplify right side
    179.14x = 42,699.57
  5. Step 5: Solve for x
    x = 42,699.57/179.14
  6. Step 6: Final answer
    x = 238.36

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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.