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Finding the Third Proportional to 115,387 and 174,619

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Solution

The third proportional to 115,387 and 174,619 is: 264,256.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,387 : 174,619 = 174,619 : x
  2. Step 2: Convert to fraction form
    115,387/174,619 = 174,619/x
  3. Step 3: Cross multiply
    115,387x = 174,619 × 174,619
  4. Step 4: Simplify right side
    115,387x = 30,491,795,161
  5. Step 5: Solve for x
    x = 30,491,795,161/115,387
  6. Step 6: Final answer
    x = 264,256.76

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.