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Finding the Third Proportional to 187,995 and 391,483

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Solution

The third proportional to 187,995 and 391,483 is: 815,228.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,995 : 391,483 = 391,483 : x
  2. Step 2: Convert to fraction form
    187,995/391,483 = 391,483/x
  3. Step 3: Cross multiply
    187,995x = 391,483 × 391,483
  4. Step 4: Simplify right side
    187,995x = 153,258,939,289
  5. Step 5: Solve for x
    x = 153,258,939,289/187,995
  6. Step 6: Final answer
    x = 815,228.81

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.