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Finding the Fourth Proportional to 544.88, 817.56 and 220.19

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Solution

The fourth proportional to 544.88, 817.56 and 220.19 is: 330.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.88 : 817.56 = 220.19 : x
  2. Step 2: Convert to fraction form
    544.88/817.56 = 220.19/x
  3. Step 3: Cross multiply
    544.88x = 817.56 × 220.19
  4. Step 4: Simplify right side
    544.88x = 180,014.45
  5. Step 5: Solve for x
    x = 180,014.45/544.88
  6. Step 6: Final answer
    x = 330.38

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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.