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Finding the Fourth Proportional to 361.45, 544.44 and 329.15

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Solution

The fourth proportional to 361.45, 544.44 and 329.15 is: 495.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.45 : 544.44 = 329.15 : x
  2. Step 2: Convert to fraction form
    361.45/544.44 = 329.15/x
  3. Step 3: Cross multiply
    361.45x = 544.44 × 329.15
  4. Step 4: Simplify right side
    361.45x = 179,202.43
  5. Step 5: Solve for x
    x = 179,202.43/361.45
  6. Step 6: Final answer
    x = 495.79

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.