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Finding the Fourth Proportional to 516.80, 774.71 and 224.11

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Solution

The fourth proportional to 516.80, 774.71 and 224.11 is: 335.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.80 : 774.71 = 224.11 : x
  2. Step 2: Convert to fraction form
    516.80/774.71 = 224.11/x
  3. Step 3: Cross multiply
    516.80x = 774.71 × 224.11
  4. Step 4: Simplify right side
    516.80x = 173,617.20
  5. Step 5: Solve for x
    x = 173,617.20/516.80
  6. Step 6: Final answer
    x = 335.95

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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.