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Finding the Third Proportional to 153.19 and 226.78

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Solution

The third proportional to 153.19 and 226.78 is: 335.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    153.19 : 226.78 = 226.78 : x
  2. Step 2: Convert to fraction form
    153.19/226.78 = 226.78/x
  3. Step 3: Cross multiply
    153.19x = 226.78 × 226.78
  4. Step 4: Simplify right side
    153.19x = 51,429.74
  5. Step 5: Solve for x
    x = 51,429.74/153.19
  6. Step 6: Final answer
    x = 335.73

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.