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Finding the Fourth Proportional to 490.52, 734.42 and 382.52

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Solution

The fourth proportional to 490.52, 734.42 and 382.52 is: 572.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    490.52 : 734.42 = 382.52 : x
  2. Step 2: Convert to fraction form
    490.52/734.42 = 382.52/x
  3. Step 3: Cross multiply
    490.52x = 734.42 × 382.52
  4. Step 4: Simplify right side
    490.52x = 280,924.75
  5. Step 5: Solve for x
    x = 280,924.75/490.52
  6. Step 6: Final answer
    x = 572.71

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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.