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Finding the Third Proportional to 129,783 and 281,596.50

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Solution

The third proportional to 129,783 and 281,596.50 is: 610,993.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,783 : 281,596.50 = 281,596.50 : x
  2. Step 2: Convert to fraction form
    129,783/281,596.50 = 281,596.50/x
  3. Step 3: Cross multiply
    129,783x = 281,596.50 × 281,596.50
  4. Step 4: Simplify right side
    129,783x = 79,296,588,812.25
  5. Step 5: Solve for x
    x = 79,296,588,812.25/129,783
  6. Step 6: Final answer
    x = 610,993.65

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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.