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Finding the Fourth Proportional to 180.18, 247.97 and 166.50

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Solution

The fourth proportional to 180.18, 247.97 and 166.50 is: 229.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.18 : 247.97 = 166.50 : x
  2. Step 2: Convert to fraction form
    180.18/247.97 = 166.50/x
  3. Step 3: Cross multiply
    180.18x = 247.97 × 166.50
  4. Step 4: Simplify right side
    180.18x = 41,286.17
  5. Step 5: Solve for x
    x = 41,286.17/180.18
  6. Step 6: Final answer
    x = 229.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.