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Finding the Third Proportional to 85,218 and 185,817

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Solution

The third proportional to 85,218 and 185,817 is: 405,172.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,218 : 185,817 = 185,817 : x
  2. Step 2: Convert to fraction form
    85,218/185,817 = 185,817/x
  3. Step 3: Cross multiply
    85,218x = 185,817 × 185,817
  4. Step 4: Simplify right side
    85,218x = 34,527,957,489
  5. Step 5: Solve for x
    x = 34,527,957,489/85,218
  6. Step 6: Final answer
    x = 405,172.12

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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.