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Finding the Fourth Proportional to 441.56, 662.19 and 194.69

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Solution

The fourth proportional to 441.56, 662.19 and 194.69 is: 291.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.56 : 662.19 = 194.69 : x
  2. Step 2: Convert to fraction form
    441.56/662.19 = 194.69/x
  3. Step 3: Cross multiply
    441.56x = 662.19 × 194.69
  4. Step 4: Simplify right side
    441.56x = 128,922.70
  5. Step 5: Solve for x
    x = 128,922.70/441.56
  6. Step 6: Final answer
    x = 291.97

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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.