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Finding the Third Proportional to 370.41 and 494.30

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Solution

The third proportional to 370.41 and 494.30 is: 659.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.41 : 494.30 = 494.30 : x
  2. Step 2: Convert to fraction form
    370.41/494.30 = 494.30/x
  3. Step 3: Cross multiply
    370.41x = 494.30 × 494.30
  4. Step 4: Simplify right side
    370.41x = 244,329.40
  5. Step 5: Solve for x
    x = 244,329.40/370.41
  6. Step 6: Final answer
    x = 659.63

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.