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Finding the Third Proportional to 98.44 and 154.69

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Solution

The third proportional to 98.44 and 154.69 is: 243.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    98.44 : 154.69 = 154.69 : x
  2. Step 2: Convert to fraction form
    98.44/154.69 = 154.69/x
  3. Step 3: Cross multiply
    98.44x = 154.69 × 154.69
  4. Step 4: Simplify right side
    98.44x = 23,928.22
  5. Step 5: Solve for x
    x = 23,928.22/98.44
  6. Step 6: Final answer
    x = 243.08

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.