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Finding the Fourth Proportional to 167.72, 232.44 and 165.16

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Solution

The fourth proportional to 167.72, 232.44 and 165.16 is: 228.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.72 : 232.44 = 165.16 : x
  2. Step 2: Convert to fraction form
    167.72/232.44 = 165.16/x
  3. Step 3: Cross multiply
    167.72x = 232.44 × 165.16
  4. Step 4: Simplify right side
    167.72x = 38,389.79
  5. Step 5: Solve for x
    x = 38,389.79/167.72
  6. Step 6: Final answer
    x = 228.89

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.