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Finding the Fourth Proportional to 171.64, 256.31 and 150.04

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Solution

The fourth proportional to 171.64, 256.31 and 150.04 is: 224.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.64 : 256.31 = 150.04 : x
  2. Step 2: Convert to fraction form
    171.64/256.31 = 150.04/x
  3. Step 3: Cross multiply
    171.64x = 256.31 × 150.04
  4. Step 4: Simplify right side
    171.64x = 38,456.75
  5. Step 5: Solve for x
    x = 38,456.75/171.64
  6. Step 6: Final answer
    x = 224.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.