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Finding the Third Proportional to 130,378.50 and 313,986

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Solution

The third proportional to 130,378.50 and 313,986 is: 756,161.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,378.50 : 313,986 = 313,986 : x
  2. Step 2: Convert to fraction form
    130,378.50/313,986 = 313,986/x
  3. Step 3: Cross multiply
    130,378.50x = 313,986 × 313,986
  4. Step 4: Simplify right side
    130,378.50x = 98,587,208,196
  5. Step 5: Solve for x
    x = 98,587,208,196/130,378.50
  6. Step 6: Final answer
    x = 756,161.55

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.