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Finding the Fourth Proportional to 414.27, 571.46 and 258.75

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Solution

The fourth proportional to 414.27, 571.46 and 258.75 is: 356.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.27 : 571.46 = 258.75 : x
  2. Step 2: Convert to fraction form
    414.27/571.46 = 258.75/x
  3. Step 3: Cross multiply
    414.27x = 571.46 × 258.75
  4. Step 4: Simplify right side
    414.27x = 147,863.98
  5. Step 5: Solve for x
    x = 147,863.98/414.27
  6. Step 6: Final answer
    x = 356.93

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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.