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Finding the Fourth Proportional to 166.66, 229.22 and 133.86

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Solution

The fourth proportional to 166.66, 229.22 and 133.86 is: 184.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.66 : 229.22 = 133.86 : x
  2. Step 2: Convert to fraction form
    166.66/229.22 = 133.86/x
  3. Step 3: Cross multiply
    166.66x = 229.22 × 133.86
  4. Step 4: Simplify right side
    166.66x = 30,683.39
  5. Step 5: Solve for x
    x = 30,683.39/166.66
  6. Step 6: Final answer
    x = 184.11

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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.