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Finding the Fourth Proportional to 441.28, 608.91 and 254.77

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Solution

The fourth proportional to 441.28, 608.91 and 254.77 is: 351.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.28 : 608.91 = 254.77 : x
  2. Step 2: Convert to fraction form
    441.28/608.91 = 254.77/x
  3. Step 3: Cross multiply
    441.28x = 608.91 × 254.77
  4. Step 4: Simplify right side
    441.28x = 155,132.00
  5. Step 5: Solve for x
    x = 155,132.00/441.28
  6. Step 6: Final answer
    x = 351.55

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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.