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Finding the Fourth Proportional to 168.05, 251.05 and 167.24

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Solution

The fourth proportional to 168.05, 251.05 and 167.24 is: 249.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.05 : 251.05 = 167.24 : x
  2. Step 2: Convert to fraction form
    168.05/251.05 = 167.24/x
  3. Step 3: Cross multiply
    168.05x = 251.05 × 167.24
  4. Step 4: Simplify right side
    168.05x = 41,985.60
  5. Step 5: Solve for x
    x = 41,985.60/168.05
  6. Step 6: Final answer
    x = 249.84

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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.