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Finding the Third Proportional to 186,738 and 289,629

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Solution

The third proportional to 186,738 and 289,629 is: 449,212.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,738 : 289,629 = 289,629 : x
  2. Step 2: Convert to fraction form
    186,738/289,629 = 289,629/x
  3. Step 3: Cross multiply
    186,738x = 289,629 × 289,629
  4. Step 4: Simplify right side
    186,738x = 83,884,957,641
  5. Step 5: Solve for x
    x = 83,884,957,641/186,738
  6. Step 6: Final answer
    x = 449,212.04

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.