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Finding the Third Proportional to 62,878 and 137,416

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Solution

The third proportional to 62,878 and 137,416 is: 300,314.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,878 : 137,416 = 137,416 : x
  2. Step 2: Convert to fraction form
    62,878/137,416 = 137,416/x
  3. Step 3: Cross multiply
    62,878x = 137,416 × 137,416
  4. Step 4: Simplify right side
    62,878x = 18,883,157,056
  5. Step 5: Solve for x
    x = 18,883,157,056/62,878
  6. Step 6: Final answer
    x = 300,314.21

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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.