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Finding the Third Proportional to 135,671 and 298,410

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Solution

The third proportional to 135,671 and 298,410 is: 656,356.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,671 : 298,410 = 298,410 : x
  2. Step 2: Convert to fraction form
    135,671/298,410 = 298,410/x
  3. Step 3: Cross multiply
    135,671x = 298,410 × 298,410
  4. Step 4: Simplify right side
    135,671x = 89,048,528,100
  5. Step 5: Solve for x
    x = 89,048,528,100/135,671
  6. Step 6: Final answer
    x = 656,356.39

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.