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Finding the Fourth Proportional to 441.20, 609.72 and 362.39

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Solution

The fourth proportional to 441.20, 609.72 and 362.39 is: 500.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.20 : 609.72 = 362.39 : x
  2. Step 2: Convert to fraction form
    441.20/609.72 = 362.39/x
  3. Step 3: Cross multiply
    441.20x = 609.72 × 362.39
  4. Step 4: Simplify right side
    441.20x = 220,956.43
  5. Step 5: Solve for x
    x = 220,956.43/441.20
  6. Step 6: Final answer
    x = 500.81

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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.