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Finding the Third Proportional to 40,236 and 86,316

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Solution

The third proportional to 40,236 and 86,316 is: 185,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,236 : 86,316 = 86,316 : x
  2. Step 2: Convert to fraction form
    40,236/86,316 = 86,316/x
  3. Step 3: Cross multiply
    40,236x = 86,316 × 86,316
  4. Step 4: Simplify right side
    40,236x = 7,450,451,856
  5. Step 5: Solve for x
    x = 7,450,451,856/40,236
  6. Step 6: Final answer
    x = 185,168.80

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.