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Finding the Third Proportional to 129,108 and 278,610

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Solution

The third proportional to 129,108 and 278,610 is: 601,229.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,108 : 278,610 = 278,610 : x
  2. Step 2: Convert to fraction form
    129,108/278,610 = 278,610/x
  3. Step 3: Cross multiply
    129,108x = 278,610 × 278,610
  4. Step 4: Simplify right side
    129,108x = 77,623,532,100
  5. Step 5: Solve for x
    x = 77,623,532,100/129,108
  6. Step 6: Final answer
    x = 601,229.45

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These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.