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Finding the Third Proportional to 80,429.06 and 176,720.63

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Solution

The third proportional to 80,429.06 and 176,720.63 is: 388,294.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,429.06 : 176,720.63 = 176,720.63 : x
  2. Step 2: Convert to fraction form
    80,429.06/176,720.63 = 176,720.63/x
  3. Step 3: Cross multiply
    80,429.06x = 176,720.63 × 176,720.63
  4. Step 4: Simplify right side
    80,429.06x = 31,230,179,300.39
  5. Step 5: Solve for x
    x = 31,230,179,300.39/80,429.06
  6. Step 6: Final answer
    x = 388,294.71

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.