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Finding the Fourth Proportional to 441.15, 608.19 and 379.64

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Solution

The fourth proportional to 441.15, 608.19 and 379.64 is: 523.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.15 : 608.19 = 379.64 : x
  2. Step 2: Convert to fraction form
    441.15/608.19 = 379.64/x
  3. Step 3: Cross multiply
    441.15x = 608.19 × 379.64
  4. Step 4: Simplify right side
    441.15x = 230,892.06
  5. Step 5: Solve for x
    x = 230,892.06/441.15
  6. Step 6: Final answer
    x = 523.39

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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.