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Finding the Third Proportional to 177,222.09 and 388,891.13

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Solution

The third proportional to 177,222.09 and 388,891.13 is: 853,371.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,222.09 : 388,891.13 = 388,891.13 : x
  2. Step 2: Convert to fraction form
    177,222.09/388,891.13 = 388,891.13/x
  3. Step 3: Cross multiply
    177,222.09x = 388,891.13 × 388,891.13
  4. Step 4: Simplify right side
    177,222.09x = 151,236,307,103.77
  5. Step 5: Solve for x
    x = 151,236,307,103.77/177,222.09
  6. Step 6: Final answer
    x = 853,371.63

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.