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Finding the Fourth Proportional to 563.97, 845.80 and 198.71

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Solution

The fourth proportional to 563.97, 845.80 and 198.71 is: 298.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.97 : 845.80 = 198.71 : x
  2. Step 2: Convert to fraction form
    563.97/845.80 = 198.71/x
  3. Step 3: Cross multiply
    563.97x = 845.80 × 198.71
  4. Step 4: Simplify right side
    563.97x = 168,070.54
  5. Step 5: Solve for x
    x = 168,070.54/563.97
  6. Step 6: Final answer
    x = 298.01

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Double scale
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Similar ratio
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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.