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Finding the Fourth Proportional to 416.94, 625.57 and 254.73

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Solution

The fourth proportional to 416.94, 625.57 and 254.73 is: 382.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    416.94 : 625.57 = 254.73 : x
  2. Step 2: Convert to fraction form
    416.94/625.57 = 254.73/x
  3. Step 3: Cross multiply
    416.94x = 625.57 × 254.73
  4. Step 4: Simplify right side
    416.94x = 159,351.45
  5. Step 5: Solve for x
    x = 159,351.45/416.94
  6. Step 6: Final answer
    x = 382.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.