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Finding the Third Proportional to 85,699 and 185,699

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Solution

The third proportional to 85,699 and 185,699 is: 402,386.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,699 : 185,699 = 185,699 : x
  2. Step 2: Convert to fraction form
    85,699/185,699 = 185,699/x
  3. Step 3: Cross multiply
    85,699x = 185,699 × 185,699
  4. Step 4: Simplify right side
    85,699x = 34,484,118,601
  5. Step 5: Solve for x
    x = 34,484,118,601/85,699
  6. Step 6: Final answer
    x = 402,386.48

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.