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Finding the Fourth Proportional to 563.62, 845.22 and 198.34

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Solution

The fourth proportional to 563.62, 845.22 and 198.34 is: 297.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.62 : 845.22 = 198.34 : x
  2. Step 2: Convert to fraction form
    563.62/845.22 = 198.34/x
  3. Step 3: Cross multiply
    563.62x = 845.22 × 198.34
  4. Step 4: Simplify right side
    563.62x = 167,640.93
  5. Step 5: Solve for x
    x = 167,640.93/563.62
  6. Step 6: Final answer
    x = 297.44

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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.