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Finding the Third Proportional to 132,869 and 286,609

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Solution

The third proportional to 132,869 and 286,609 is: 618,238.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,869 : 286,609 = 286,609 : x
  2. Step 2: Convert to fraction form
    132,869/286,609 = 286,609/x
  3. Step 3: Cross multiply
    132,869x = 286,609 × 286,609
  4. Step 4: Simplify right side
    132,869x = 82,144,718,881
  5. Step 5: Solve for x
    x = 82,144,718,881/132,869
  6. Step 6: Final answer
    x = 618,238.41

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.