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Finding the Fourth Proportional to 231.96, 349.23 and 180.88

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Solution

The fourth proportional to 231.96, 349.23 and 180.88 is: 272.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.96 : 349.23 = 180.88 : x
  2. Step 2: Convert to fraction form
    231.96/349.23 = 180.88/x
  3. Step 3: Cross multiply
    231.96x = 349.23 × 180.88
  4. Step 4: Simplify right side
    231.96x = 63,168.72
  5. Step 5: Solve for x
    x = 63,168.72/231.96
  6. Step 6: Final answer
    x = 272.33

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.