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Finding the Fourth Proportional to 584.97, 877.31 and 219.87

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Solution

The fourth proportional to 584.97, 877.31 and 219.87 is: 329.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.97 : 877.31 = 219.87 : x
  2. Step 2: Convert to fraction form
    584.97/877.31 = 219.87/x
  3. Step 3: Cross multiply
    584.97x = 877.31 × 219.87
  4. Step 4: Simplify right side
    584.97x = 192,893.05
  5. Step 5: Solve for x
    x = 192,893.05/584.97
  6. Step 6: Final answer
    x = 329.75

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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.