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Finding the Fourth Proportional to 552.44, 828.43 and 205.80

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Solution

The fourth proportional to 552.44, 828.43 and 205.80 is: 308.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.44 : 828.43 = 205.80 : x
  2. Step 2: Convert to fraction form
    552.44/828.43 = 205.80/x
  3. Step 3: Cross multiply
    552.44x = 828.43 × 205.80
  4. Step 4: Simplify right side
    552.44x = 170,490.38
  5. Step 5: Solve for x
    x = 170,490.38/552.44
  6. Step 6: Final answer
    x = 308.61

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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.