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Finding the Fourth Proportional to 231.09, 319.19 and 182.61

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Solution

The fourth proportional to 231.09, 319.19 and 182.61 is: 252.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.09 : 319.19 = 182.61 : x
  2. Step 2: Convert to fraction form
    231.09/319.19 = 182.61/x
  3. Step 3: Cross multiply
    231.09x = 319.19 × 182.61
  4. Step 4: Simplify right side
    231.09x = 58,286.37
  5. Step 5: Solve for x
    x = 58,286.37/231.09
  6. Step 6: Final answer
    x = 252.22

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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.