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Finding the Fourth Proportional to 411.85, 568.11 and 254.44

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Solution

The fourth proportional to 411.85, 568.11 and 254.44 is: 350.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    411.85 : 568.11 = 254.44 : x
  2. Step 2: Convert to fraction form
    411.85/568.11 = 254.44/x
  3. Step 3: Cross multiply
    411.85x = 568.11 × 254.44
  4. Step 4: Simplify right side
    411.85x = 144,549.91
  5. Step 5: Solve for x
    x = 144,549.91/411.85
  6. Step 6: Final answer
    x = 350.98

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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.