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Finding the Fourth Proportional to 544.36, 816.78 and 219.96

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Solution

The fourth proportional to 544.36, 816.78 and 219.96 is: 330.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.36 : 816.78 = 219.96 : x
  2. Step 2: Convert to fraction form
    544.36/816.78 = 219.96/x
  3. Step 3: Cross multiply
    544.36x = 816.78 × 219.96
  4. Step 4: Simplify right side
    544.36x = 179,658.93
  5. Step 5: Solve for x
    x = 179,658.93/544.36
  6. Step 6: Final answer
    x = 330.04

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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.