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Finding the Third Proportional to 186,340 and 263,418

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Solution

The third proportional to 186,340 and 263,418 is: 372,378.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,340 : 263,418 = 263,418 : x
  2. Step 2: Convert to fraction form
    186,340/263,418 = 263,418/x
  3. Step 3: Cross multiply
    186,340x = 263,418 × 263,418
  4. Step 4: Simplify right side
    186,340x = 69,389,042,724
  5. Step 5: Solve for x
    x = 69,389,042,724/186,340
  6. Step 6: Final answer
    x = 372,378.68

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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.