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Finding the Fourth Proportional to 197.82, 296.39 and 154.47

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Solution

The fourth proportional to 197.82, 296.39 and 154.47 is: 231.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.82 : 296.39 = 154.47 : x
  2. Step 2: Convert to fraction form
    197.82/296.39 = 154.47/x
  3. Step 3: Cross multiply
    197.82x = 296.39 × 154.47
  4. Step 4: Simplify right side
    197.82x = 45,783.75
  5. Step 5: Solve for x
    x = 45,783.75/197.82
  6. Step 6: Final answer
    x = 231.44

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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.