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Finding the Fourth Proportional to 171.28, 234.83 and 168.04

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Solution

The fourth proportional to 171.28, 234.83 and 168.04 is: 230.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.28 : 234.83 = 168.04 : x
  2. Step 2: Convert to fraction form
    171.28/234.83 = 168.04/x
  3. Step 3: Cross multiply
    171.28x = 234.83 × 168.04
  4. Step 4: Simplify right side
    171.28x = 39,460.83
  5. Step 5: Solve for x
    x = 39,460.83/171.28
  6. Step 6: Final answer
    x = 230.39

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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.