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Finding the Fourth Proportional to 414.75, 572.36 and 230.75

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Solution

The fourth proportional to 414.75, 572.36 and 230.75 is: 318.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.75 : 572.36 = 230.75 : x
  2. Step 2: Convert to fraction form
    414.75/572.36 = 230.75/x
  3. Step 3: Cross multiply
    414.75x = 572.36 × 230.75
  4. Step 4: Simplify right side
    414.75x = 132,072.07
  5. Step 5: Solve for x
    x = 132,072.07/414.75
  6. Step 6: Final answer
    x = 318.44

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Find fourth proportional to 207.38, 286.18 and 115.38
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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.