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Finding the Fourth Proportional to 264.43, 396.44 and 198.42

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Solution

The fourth proportional to 264.43, 396.44 and 198.42 is: 297.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.43 : 396.44 = 198.42 : x
  2. Step 2: Convert to fraction form
    264.43/396.44 = 198.42/x
  3. Step 3: Cross multiply
    264.43x = 396.44 × 198.42
  4. Step 4: Simplify right side
    264.43x = 78,661.62
  5. Step 5: Solve for x
    x = 78,661.62/264.43
  6. Step 6: Final answer
    x = 297.48

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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.