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Finding the Fourth Proportional to 185.38, 256.23 and 167.96

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Solution

The fourth proportional to 185.38, 256.23 and 167.96 is: 232.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.38 : 256.23 = 167.96 : x
  2. Step 2: Convert to fraction form
    185.38/256.23 = 167.96/x
  3. Step 3: Cross multiply
    185.38x = 256.23 × 167.96
  4. Step 4: Simplify right side
    185.38x = 43,037.03
  5. Step 5: Solve for x
    x = 43,037.03/185.38
  6. Step 6: Final answer
    x = 232.16

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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.