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Finding the Third Proportional to 129,366.75 and 282,780.75

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Solution

The third proportional to 129,366.75 and 282,780.75 is: 618,126.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,366.75 : 282,780.75 = 282,780.75 : x
  2. Step 2: Convert to fraction form
    129,366.75/282,780.75 = 282,780.75/x
  3. Step 3: Cross multiply
    129,366.75x = 282,780.75 × 282,780.75
  4. Step 4: Simplify right side
    129,366.75x = 79,964,952,570.56
  5. Step 5: Solve for x
    x = 79,964,952,570.56/129,366.75
  6. Step 6: Final answer
    x = 618,126.01

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.