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Finding the Fourth Proportional to 414.75, 572.36 and 249.11

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Solution

The fourth proportional to 414.75, 572.36 and 249.11 is: 343.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.75 : 572.36 = 249.11 : x
  2. Step 2: Convert to fraction form
    414.75/572.36 = 249.11/x
  3. Step 3: Cross multiply
    414.75x = 572.36 × 249.11
  4. Step 4: Simplify right side
    414.75x = 142,576.49
  5. Step 5: Solve for x
    x = 142,576.49/414.75
  6. Step 6: Final answer
    x = 343.76

Related Problems

Find fourth proportional to 207.38, 286.18 and 124.55
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Double scale
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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.