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Finding the Fourth Proportional to 584.95, 877.20 and 219.54

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Solution

The fourth proportional to 584.95, 877.20 and 219.54 is: 329.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.95 : 877.20 = 219.54 : x
  2. Step 2: Convert to fraction form
    584.95/877.20 = 219.54/x
  3. Step 3: Cross multiply
    584.95x = 877.20 × 219.54
  4. Step 4: Simplify right side
    584.95x = 192,580.49
  5. Step 5: Solve for x
    x = 192,580.49/584.95
  6. Step 6: Final answer
    x = 329.23

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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.