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Finding the Third Proportional to 117,318 and 159,396

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Solution

The third proportional to 117,318 and 159,396 is: 216,565.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,318 : 159,396 = 159,396 : x
  2. Step 2: Convert to fraction form
    117,318/159,396 = 159,396/x
  3. Step 3: Cross multiply
    117,318x = 159,396 × 159,396
  4. Step 4: Simplify right side
    117,318x = 25,407,084,816
  5. Step 5: Solve for x
    x = 25,407,084,816/117,318
  6. Step 6: Final answer
    x = 216,565.96

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.