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Finding the Fourth Proportional to 224.12, 335.60 and 198.18

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Solution

The fourth proportional to 224.12, 335.60 and 198.18 is: 296.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.12 : 335.60 = 198.18 : x
  2. Step 2: Convert to fraction form
    224.12/335.60 = 198.18/x
  3. Step 3: Cross multiply
    224.12x = 335.60 × 198.18
  4. Step 4: Simplify right side
    224.12x = 66,509.21
  5. Step 5: Solve for x
    x = 66,509.21/224.12
  6. Step 6: Final answer
    x = 296.76

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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.