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Finding the Third Proportional to 121,402 and 183,796

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Solution

The third proportional to 121,402 and 183,796 is: 278,257.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,402 : 183,796 = 183,796 : x
  2. Step 2: Convert to fraction form
    121,402/183,796 = 183,796/x
  3. Step 3: Cross multiply
    121,402x = 183,796 × 183,796
  4. Step 4: Simplify right side
    121,402x = 33,780,969,616
  5. Step 5: Solve for x
    x = 33,780,969,616/121,402
  6. Step 6: Final answer
    x = 278,257.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.