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Finding the Fourth Proportional to 447.10, 616.94 and 250.57

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Solution

The fourth proportional to 447.10, 616.94 and 250.57 is: 345.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.10 : 616.94 = 250.57 : x
  2. Step 2: Convert to fraction form
    447.10/616.94 = 250.57/x
  3. Step 3: Cross multiply
    447.10x = 616.94 × 250.57
  4. Step 4: Simplify right side
    447.10x = 154,588.05
  5. Step 5: Solve for x
    x = 154,588.05/447.10
  6. Step 6: Final answer
    x = 345.76

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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.