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Finding the Third Proportional to 130.97 and 274.69

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Solution

The third proportional to 130.97 and 274.69 is: 576.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.97 : 274.69 = 274.69 : x
  2. Step 2: Convert to fraction form
    130.97/274.69 = 274.69/x
  3. Step 3: Cross multiply
    130.97x = 274.69 × 274.69
  4. Step 4: Simplify right side
    130.97x = 75,453.22
  5. Step 5: Solve for x
    x = 75,453.22/130.97
  6. Step 6: Final answer
    x = 576.12

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.