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Finding the Third Proportional to 92,858 and 139,286

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Solution

The third proportional to 92,858 and 139,286 is: 208,927.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,858 : 139,286 = 139,286 : x
  2. Step 2: Convert to fraction form
    92,858/139,286 = 139,286/x
  3. Step 3: Cross multiply
    92,858x = 139,286 × 139,286
  4. Step 4: Simplify right side
    92,858x = 19,400,589,796
  5. Step 5: Solve for x
    x = 19,400,589,796/92,858
  6. Step 6: Final answer
    x = 208,927.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.