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Finding the Fourth Proportional to 364.70, 547.07 and 219.44

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Solution

The fourth proportional to 364.70, 547.07 and 219.44 is: 329.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.70 : 547.07 = 219.44 : x
  2. Step 2: Convert to fraction form
    364.70/547.07 = 219.44/x
  3. Step 3: Cross multiply
    364.70x = 547.07 × 219.44
  4. Step 4: Simplify right side
    364.70x = 120,049.04
  5. Step 5: Solve for x
    x = 120,049.04/364.70
  6. Step 6: Final answer
    x = 329.17

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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.