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Finding the Fourth Proportional to 447.14, 617.14 and 270.24

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Solution

The fourth proportional to 447.14, 617.14 and 270.24 is: 372.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.14 : 617.14 = 270.24 : x
  2. Step 2: Convert to fraction form
    447.14/617.14 = 270.24/x
  3. Step 3: Cross multiply
    447.14x = 617.14 × 270.24
  4. Step 4: Simplify right side
    447.14x = 166,775.91
  5. Step 5: Solve for x
    x = 166,775.91/447.14
  6. Step 6: Final answer
    x = 372.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.