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Finding the Fourth Proportional to 167.26, 250.87 and 71.10

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Solution

The fourth proportional to 167.26, 250.87 and 71.10 is: 106.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.26 : 250.87 = 71.10 : x
  2. Step 2: Convert to fraction form
    167.26/250.87 = 71.10/x
  3. Step 3: Cross multiply
    167.26x = 250.87 × 71.10
  4. Step 4: Simplify right side
    167.26x = 17,836.86
  5. Step 5: Solve for x
    x = 17,836.86/167.26
  6. Step 6: Final answer
    x = 106.64

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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.