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Finding the Fourth Proportional to 167.26, 229.67 and 161.19

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Solution

The fourth proportional to 167.26, 229.67 and 161.19 is: 221.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.26 : 229.67 = 161.19 : x
  2. Step 2: Convert to fraction form
    167.26/229.67 = 161.19/x
  3. Step 3: Cross multiply
    167.26x = 229.67 × 161.19
  4. Step 4: Simplify right side
    167.26x = 37,020.51
  5. Step 5: Solve for x
    x = 37,020.51/167.26
  6. Step 6: Final answer
    x = 221.34

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.