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Finding the Fourth Proportional to 167.65, 251.20 and 133.23

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Solution

The fourth proportional to 167.65, 251.20 and 133.23 is: 199.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.65 : 251.20 = 133.23 : x
  2. Step 2: Convert to fraction form
    167.65/251.20 = 133.23/x
  3. Step 3: Cross multiply
    167.65x = 251.20 × 133.23
  4. Step 4: Simplify right side
    167.65x = 33,467.38
  5. Step 5: Solve for x
    x = 33,467.38/167.65
  6. Step 6: Final answer
    x = 199.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.