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Finding the Third Proportional to 86,427 and 133,328

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Solution

The third proportional to 86,427 and 133,328 is: 205,680.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,427 : 133,328 = 133,328 : x
  2. Step 2: Convert to fraction form
    86,427/133,328 = 133,328/x
  3. Step 3: Cross multiply
    86,427x = 133,328 × 133,328
  4. Step 4: Simplify right side
    86,427x = 17,776,355,584
  5. Step 5: Solve for x
    x = 17,776,355,584/86,427
  6. Step 6: Final answer
    x = 205,680.58

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.