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Finding the Third Proportional to 130.22 and 282.28

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Solution

The third proportional to 130.22 and 282.28 is: 611.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.22 : 282.28 = 282.28 : x
  2. Step 2: Convert to fraction form
    130.22/282.28 = 282.28/x
  3. Step 3: Cross multiply
    130.22x = 282.28 × 282.28
  4. Step 4: Simplify right side
    130.22x = 79,682.70
  5. Step 5: Solve for x
    x = 79,682.70/130.22
  6. Step 6: Final answer
    x = 611.91

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.