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Finding the Third Proportional to 294.26 and 439.49

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Solution

The third proportional to 294.26 and 439.49 is: 656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.26 : 439.49 = 439.49 : x
  2. Step 2: Convert to fraction form
    294.26/439.49 = 439.49/x
  3. Step 3: Cross multiply
    294.26x = 439.49 × 439.49
  4. Step 4: Simplify right side
    294.26x = 193,149.95
  5. Step 5: Solve for x
    x = 193,149.95/294.26
  6. Step 6: Final answer
    x = 656.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.