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Finding the Fourth Proportional to 166.59, 229.83 and 111.27

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Solution

The fourth proportional to 166.59, 229.83 and 111.27 is: 153.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.59 : 229.83 = 111.27 : x
  2. Step 2: Convert to fraction form
    166.59/229.83 = 111.27/x
  3. Step 3: Cross multiply
    166.59x = 229.83 × 111.27
  4. Step 4: Simplify right side
    166.59x = 25,573.18
  5. Step 5: Solve for x
    x = 25,573.18/166.59
  6. Step 6: Final answer
    x = 153.51

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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.