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Finding the Third Proportional to 240.19 and 372.66

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Solution

The third proportional to 240.19 and 372.66 is: 578.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.19 : 372.66 = 372.66 : x
  2. Step 2: Convert to fraction form
    240.19/372.66 = 372.66/x
  3. Step 3: Cross multiply
    240.19x = 372.66 × 372.66
  4. Step 4: Simplify right side
    240.19x = 138,872.68
  5. Step 5: Solve for x
    x = 138,872.68/240.19
  6. Step 6: Final answer
    x = 578.18

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.