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Finding the Fourth Proportional to 171.12, 234.57 and 168.01

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Solution

The fourth proportional to 171.12, 234.57 and 168.01 is: 230.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.12 : 234.57 = 168.01 : x
  2. Step 2: Convert to fraction form
    171.12/234.57 = 168.01/x
  3. Step 3: Cross multiply
    171.12x = 234.57 × 168.01
  4. Step 4: Simplify right side
    171.12x = 39,410.53
  5. Step 5: Solve for x
    x = 39,410.53/171.12
  6. Step 6: Final answer
    x = 230.32

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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.