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Finding the Fourth Proportional to 298.04, 411.24 and 199.62

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Solution

The fourth proportional to 298.04, 411.24 and 199.62 is: 275.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    298.04 : 411.24 = 199.62 : x
  2. Step 2: Convert to fraction form
    298.04/411.24 = 199.62/x
  3. Step 3: Cross multiply
    298.04x = 411.24 × 199.62
  4. Step 4: Simplify right side
    298.04x = 82,091.73
  5. Step 5: Solve for x
    x = 82,091.73/298.04
  6. Step 6: Final answer
    x = 275.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.