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Finding the Fourth Proportional to 171.18, 258.02 and 167.08

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Solution

The fourth proportional to 171.18, 258.02 and 167.08 is: 251.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.18 : 258.02 = 167.08 : x
  2. Step 2: Convert to fraction form
    171.18/258.02 = 167.08/x
  3. Step 3: Cross multiply
    171.18x = 258.02 × 167.08
  4. Step 4: Simplify right side
    171.18x = 43,109.98
  5. Step 5: Solve for x
    x = 43,109.98/171.18
  6. Step 6: Final answer
    x = 251.84

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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.