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Finding the Third Proportional to 40,018 and 87,236

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Solution

The third proportional to 40,018 and 87,236 is: 190,167.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,018 : 87,236 = 87,236 : x
  2. Step 2: Convert to fraction form
    40,018/87,236 = 87,236/x
  3. Step 3: Cross multiply
    40,018x = 87,236 × 87,236
  4. Step 4: Simplify right side
    40,018x = 7,610,119,696
  5. Step 5: Solve for x
    x = 7,610,119,696/40,018
  6. Step 6: Final answer
    x = 190,167.42

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.