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Finding the Third Proportional to 121,397 and 183,735

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Solution

The third proportional to 121,397 and 183,735 is: 278,083.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,397 : 183,735 = 183,735 : x
  2. Step 2: Convert to fraction form
    121,397/183,735 = 183,735/x
  3. Step 3: Cross multiply
    121,397x = 183,735 × 183,735
  4. Step 4: Simplify right side
    121,397x = 33,758,550,225
  5. Step 5: Solve for x
    x = 33,758,550,225/121,397
  6. Step 6: Final answer
    x = 278,083.89

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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.