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Finding the Third Proportional to 146.81 and 188.91

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Solution

The third proportional to 146.81 and 188.91 is: 243.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    146.81 : 188.91 = 188.91 : x
  2. Step 2: Convert to fraction form
    146.81/188.91 = 188.91/x
  3. Step 3: Cross multiply
    146.81x = 188.91 × 188.91
  4. Step 4: Simplify right side
    146.81x = 35,685.57
  5. Step 5: Solve for x
    x = 35,685.57/146.81
  6. Step 6: Final answer
    x = 243.07

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Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.