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Finding the Fourth Proportional to 167.50, 250.91 and 118.63

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Solution

The fourth proportional to 167.50, 250.91 and 118.63 is: 177.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.50 : 250.91 = 118.63 : x
  2. Step 2: Convert to fraction form
    167.50/250.91 = 118.63/x
  3. Step 3: Cross multiply
    167.50x = 250.91 × 118.63
  4. Step 4: Simplify right side
    167.50x = 29,763.61
  5. Step 5: Solve for x
    x = 29,763.61/167.50
  6. Step 6: Final answer
    x = 177.70

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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.