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Finding the Fourth Proportional to 167.91, 250.28 and 154.68

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Solution

The fourth proportional to 167.91, 250.28 and 154.68 is: 230.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.91 : 250.28 = 154.68 : x
  2. Step 2: Convert to fraction form
    167.91/250.28 = 154.68/x
  3. Step 3: Cross multiply
    167.91x = 250.28 × 154.68
  4. Step 4: Simplify right side
    167.91x = 38,713.31
  5. Step 5: Solve for x
    x = 38,713.31/167.91
  6. Step 6: Final answer
    x = 230.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.