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Finding the Third Proportional to 115,826 and 253,816

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Solution

The third proportional to 115,826 and 253,816 is: 556,201.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,826 : 253,816 = 253,816 : x
  2. Step 2: Convert to fraction form
    115,826/253,816 = 253,816/x
  3. Step 3: Cross multiply
    115,826x = 253,816 × 253,816
  4. Step 4: Simplify right side
    115,826x = 64,422,561,856
  5. Step 5: Solve for x
    x = 64,422,561,856/115,826
  6. Step 6: Final answer
    x = 556,201.21

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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.