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Finding the Fourth Proportional to 447.43, 617.49 and 250.96

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Solution

The fourth proportional to 447.43, 617.49 and 250.96 is: 346.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.43 : 617.49 = 250.96 : x
  2. Step 2: Convert to fraction form
    447.43/617.49 = 250.96/x
  3. Step 3: Cross multiply
    447.43x = 617.49 × 250.96
  4. Step 4: Simplify right side
    447.43x = 154,965.29
  5. Step 5: Solve for x
    x = 154,965.29/447.43
  6. Step 6: Final answer
    x = 346.35

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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.