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Finding the Third Proportional to 98.09 and 147.87

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Solution

The third proportional to 98.09 and 147.87 is: 222.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98.09 : 147.87 = 147.87 : x
  2. Step 2: Convert to fraction form
    98.09/147.87 = 147.87/x
  3. Step 3: Cross multiply
    98.09x = 147.87 × 147.87
  4. Step 4: Simplify right side
    98.09x = 21,864.71
  5. Step 5: Solve for x
    x = 21,864.71/98.09
  6. Step 6: Final answer
    x = 222.91

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.