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Finding the Third Proportional to 153.84 and 225.56

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Solution

The third proportional to 153.84 and 225.56 is: 330.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    153.84 : 225.56 = 225.56 : x
  2. Step 2: Convert to fraction form
    153.84/225.56 = 225.56/x
  3. Step 3: Cross multiply
    153.84x = 225.56 × 225.56
  4. Step 4: Simplify right side
    153.84x = 50,878.44
  5. Step 5: Solve for x
    x = 50,878.44/153.84
  6. Step 6: Final answer
    x = 330.72

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.