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Finding the Third Proportional to 177,211.13 and 388,870.31

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Solution

The third proportional to 177,211.13 and 388,870.31 is: 853,333.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,211.13 : 388,870.31 = 388,870.31 : x
  2. Step 2: Convert to fraction form
    177,211.13/388,870.31 = 388,870.31/x
  3. Step 3: Cross multiply
    177,211.13x = 388,870.31 × 388,870.31
  4. Step 4: Simplify right side
    177,211.13x = 151,220,119,943.85
  5. Step 5: Solve for x
    x = 151,220,119,943.85/177,211.13
  6. Step 6: Final answer
    x = 853,333.11

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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.