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Finding the Fourth Proportional to 441.99, 609.68 and 276.23

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Solution

The fourth proportional to 441.99, 609.68 and 276.23 is: 381.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.99 : 609.68 = 276.23 : x
  2. Step 2: Convert to fraction form
    441.99/609.68 = 276.23/x
  3. Step 3: Cross multiply
    441.99x = 609.68 × 276.23
  4. Step 4: Simplify right side
    441.99x = 168,414.12
  5. Step 5: Solve for x
    x = 168,414.12/441.99
  6. Step 6: Final answer
    x = 381.04

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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.