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Finding the Fourth Proportional to 411.42, 568.08 and 254.28

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Solution

The fourth proportional to 411.42, 568.08 and 254.28 is: 351.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    411.42 : 568.08 = 254.28 : x
  2. Step 2: Convert to fraction form
    411.42/568.08 = 254.28/x
  3. Step 3: Cross multiply
    411.42x = 568.08 × 254.28
  4. Step 4: Simplify right side
    411.42x = 144,451.38
  5. Step 5: Solve for x
    x = 144,451.38/411.42
  6. Step 6: Final answer
    x = 351.10

Related Problems

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Double scale
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Similar ratio
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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.