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Finding the Fourth Proportional to 171.33, 235.01 and 167.28

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Solution

The fourth proportional to 171.33, 235.01 and 167.28 is: 229.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.33 : 235.01 = 167.28 : x
  2. Step 2: Convert to fraction form
    171.33/235.01 = 167.28/x
  3. Step 3: Cross multiply
    171.33x = 235.01 × 167.28
  4. Step 4: Simplify right side
    171.33x = 39,311.64
  5. Step 5: Solve for x
    x = 39,311.64/171.33
  6. Step 6: Final answer
    x = 229.45

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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.