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Finding the Fourth Proportional to 441.27, 608.85 and 283.95

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Solution

The fourth proportional to 441.27, 608.85 and 283.95 is: 391.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.27 : 608.85 = 283.95 : x
  2. Step 2: Convert to fraction form
    441.27/608.85 = 283.95/x
  3. Step 3: Cross multiply
    441.27x = 608.85 × 283.95
  4. Step 4: Simplify right side
    441.27x = 172,881.54
  5. Step 5: Solve for x
    x = 172,881.54/441.27
  6. Step 6: Final answer
    x = 391.79

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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.