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Finding the Fourth Proportional to 447.46, 671.19 and 158.89

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Solution

The fourth proportional to 447.46, 671.19 and 158.89 is: 238.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.46 : 671.19 = 158.89 : x
  2. Step 2: Convert to fraction form
    447.46/671.19 = 158.89/x
  3. Step 3: Cross multiply
    447.46x = 671.19 × 158.89
  4. Step 4: Simplify right side
    447.46x = 106,645.38
  5. Step 5: Solve for x
    x = 106,645.38/447.46
  6. Step 6: Final answer
    x = 238.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.