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Finding the Third Proportional to 311,688 and 441,036

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Solution

The third proportional to 311,688 and 441,036 is: 624,062.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,688 : 441,036 = 441,036 : x
  2. Step 2: Convert to fraction form
    311,688/441,036 = 441,036/x
  3. Step 3: Cross multiply
    311,688x = 441,036 × 441,036
  4. Step 4: Simplify right side
    311,688x = 194,512,753,296
  5. Step 5: Solve for x
    x = 194,512,753,296/311,688
  6. Step 6: Final answer
    x = 624,062.37

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.