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Finding the Third Proportional to 135.84 and 194.91

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Solution

The third proportional to 135.84 and 194.91 is: 279.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    135.84 : 194.91 = 194.91 : x
  2. Step 2: Convert to fraction form
    135.84/194.91 = 194.91/x
  3. Step 3: Cross multiply
    135.84x = 194.91 × 194.91
  4. Step 4: Simplify right side
    135.84x = 37,988.45
  5. Step 5: Solve for x
    x = 37,988.45/135.84
  6. Step 6: Final answer
    x = 279.65

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.