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Finding the Third Proportional to 40,392 and 87,228

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Solution

The third proportional to 40,392 and 87,228 is: 188,372.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,392 : 87,228 = 87,228 : x
  2. Step 2: Convert to fraction form
    40,392/87,228 = 87,228/x
  3. Step 3: Cross multiply
    40,392x = 87,228 × 87,228
  4. Step 4: Simplify right side
    40,392x = 7,608,723,984
  5. Step 5: Solve for x
    x = 7,608,723,984/40,392
  6. Step 6: Final answer
    x = 188,372.05

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.