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Finding the Fourth Proportional to 544.98, 818.07 and 220.57

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Solution

The fourth proportional to 544.98, 818.07 and 220.57 is: 331.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.98 : 818.07 = 220.57 : x
  2. Step 2: Convert to fraction form
    544.98/818.07 = 220.57/x
  3. Step 3: Cross multiply
    544.98x = 818.07 × 220.57
  4. Step 4: Simplify right side
    544.98x = 180,441.70
  5. Step 5: Solve for x
    x = 180,441.70/544.98
  6. Step 6: Final answer
    x = 331.10

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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.