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Finding the Third Proportional to 173,787 and 268,659

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Solution

The third proportional to 173,787 and 268,659 is: 415,322.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,787 : 268,659 = 268,659 : x
  2. Step 2: Convert to fraction form
    173,787/268,659 = 268,659/x
  3. Step 3: Cross multiply
    173,787x = 268,659 × 268,659
  4. Step 4: Simplify right side
    173,787x = 72,177,658,281
  5. Step 5: Solve for x
    x = 72,177,658,281/173,787
  6. Step 6: Final answer
    x = 415,322.54

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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.