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Finding the Third Proportional to 131,226.75 and 287,979.75

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Solution

The third proportional to 131,226.75 and 287,979.75 is: 631,977.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,226.75 : 287,979.75 = 287,979.75 : x
  2. Step 2: Convert to fraction form
    131,226.75/287,979.75 = 287,979.75/x
  3. Step 3: Cross multiply
    131,226.75x = 287,979.75 × 287,979.75
  4. Step 4: Simplify right side
    131,226.75x = 82,932,336,410.06
  5. Step 5: Solve for x
    x = 82,932,336,410.06/131,226.75
  6. Step 6: Final answer
    x = 631,977.37

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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.