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Finding the Fourth Proportional to 512.82, 768.84 and 224.06

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Solution

The fourth proportional to 512.82, 768.84 and 224.06 is: 335.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    512.82 : 768.84 = 224.06 : x
  2. Step 2: Convert to fraction form
    512.82/768.84 = 224.06/x
  3. Step 3: Cross multiply
    512.82x = 768.84 × 224.06
  4. Step 4: Simplify right side
    512.82x = 172,266.29
  5. Step 5: Solve for x
    x = 172,266.29/512.82
  6. Step 6: Final answer
    x = 335.92

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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.