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Finding the Fourth Proportional to 411.46, 568.56 and 327.70

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Solution

The fourth proportional to 411.46, 568.56 and 327.70 is: 452.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    411.46 : 568.56 = 327.70 : x
  2. Step 2: Convert to fraction form
    411.46/568.56 = 327.70/x
  3. Step 3: Cross multiply
    411.46x = 568.56 × 327.70
  4. Step 4: Simplify right side
    411.46x = 186,317.11
  5. Step 5: Solve for x
    x = 186,317.11/411.46
  6. Step 6: Final answer
    x = 452.82

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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.