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Finding the Third Proportional to 186,884 and 290,170

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Solution

The third proportional to 186,884 and 290,170 is: 450,539.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,884 : 290,170 = 290,170 : x
  2. Step 2: Convert to fraction form
    186,884/290,170 = 290,170/x
  3. Step 3: Cross multiply
    186,884x = 290,170 × 290,170
  4. Step 4: Simplify right side
    186,884x = 84,198,628,900
  5. Step 5: Solve for x
    x = 84,198,628,900/186,884
  6. Step 6: Final answer
    x = 450,539.53

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.