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Finding the Fourth Proportional to 441.44, 609.30 and 275.55

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Solution

The fourth proportional to 441.44, 609.30 and 275.55 is: 380.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.44 : 609.30 = 275.55 : x
  2. Step 2: Convert to fraction form
    441.44/609.30 = 275.55/x
  3. Step 3: Cross multiply
    441.44x = 609.30 × 275.55
  4. Step 4: Simplify right side
    441.44x = 167,892.62
  5. Step 5: Solve for x
    x = 167,892.62/441.44
  6. Step 6: Final answer
    x = 380.33

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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.