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Finding the Third Proportional to 129,765 and 281,562

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Solution

The third proportional to 129,765 and 281,562 is: 610,928.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,765 : 281,562 = 281,562 : x
  2. Step 2: Convert to fraction form
    129,765/281,562 = 281,562/x
  3. Step 3: Cross multiply
    129,765x = 281,562 × 281,562
  4. Step 4: Simplify right side
    129,765x = 79,277,159,844
  5. Step 5: Solve for x
    x = 79,277,159,844/129,765
  6. Step 6: Final answer
    x = 610,928.68

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.