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Finding the Fourth Proportional to 494.15, 742.10 and 441.23

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Solution

The fourth proportional to 494.15, 742.10 and 441.23 is: 662.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.15 : 742.10 = 441.23 : x
  2. Step 2: Convert to fraction form
    494.15/742.10 = 441.23/x
  3. Step 3: Cross multiply
    494.15x = 742.10 × 441.23
  4. Step 4: Simplify right side
    494.15x = 327,430.87
  5. Step 5: Solve for x
    x = 327,430.87/494.15
  6. Step 6: Final answer
    x = 662.62

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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.