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Finding the Fourth Proportional to 584.62, 876.56 and 255.31

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Solution

The fourth proportional to 584.62, 876.56 and 255.31 is: 382.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.62 : 876.56 = 255.31 : x
  2. Step 2: Convert to fraction form
    584.62/876.56 = 255.31/x
  3. Step 3: Cross multiply
    584.62x = 876.56 × 255.31
  4. Step 4: Simplify right side
    584.62x = 223,793.53
  5. Step 5: Solve for x
    x = 223,793.53/584.62
  6. Step 6: Final answer
    x = 382.80

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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.