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Finding the Fourth Proportional to 523.37, 784.60 and 198.97

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Solution

The fourth proportional to 523.37, 784.60 and 198.97 is: 298.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.37 : 784.60 = 198.97 : x
  2. Step 2: Convert to fraction form
    523.37/784.60 = 198.97/x
  3. Step 3: Cross multiply
    523.37x = 784.60 × 198.97
  4. Step 4: Simplify right side
    523.37x = 156,110.15
  5. Step 5: Solve for x
    x = 156,110.15/523.37
  6. Step 6: Final answer
    x = 298.28

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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.