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Finding the Fourth Proportional to 544.79, 817.56 and 220.14

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Solution

The fourth proportional to 544.79, 817.56 and 220.14 is: 330.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.79 : 817.56 = 220.14 : x
  2. Step 2: Convert to fraction form
    544.79/817.56 = 220.14/x
  3. Step 3: Cross multiply
    544.79x = 817.56 × 220.14
  4. Step 4: Simplify right side
    544.79x = 179,977.66
  5. Step 5: Solve for x
    x = 179,977.66/544.79
  6. Step 6: Final answer
    x = 330.36

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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.