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Finding the Third Proportional to 141.75 and 296.16

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Solution

The third proportional to 141.75 and 296.16 is: 618.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.75 : 296.16 = 296.16 : x
  2. Step 2: Convert to fraction form
    141.75/296.16 = 296.16/x
  3. Step 3: Cross multiply
    141.75x = 296.16 × 296.16
  4. Step 4: Simplify right side
    141.75x = 87,708.52
  5. Step 5: Solve for x
    x = 87,708.52/141.75
  6. Step 6: Final answer
    x = 618.76

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.