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Finding the Fourth Proportional to 300.60, 414.54 and 197.08

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Solution

The fourth proportional to 300.60, 414.54 and 197.08 is: 271.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.60 : 414.54 = 197.08 : x
  2. Step 2: Convert to fraction form
    300.60/414.54 = 197.08/x
  3. Step 3: Cross multiply
    300.60x = 414.54 × 197.08
  4. Step 4: Simplify right side
    300.60x = 81,697.54
  5. Step 5: Solve for x
    x = 81,697.54/300.60
  6. Step 6: Final answer
    x = 271.78

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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.