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Finding the Third Proportional to 311,843.25 and 502,216.88

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Solution

The third proportional to 311,843.25 and 502,216.88 is: 808,809.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,843.25 : 502,216.88 = 502,216.88 : x
  2. Step 2: Convert to fraction form
    311,843.25/502,216.88 = 502,216.88/x
  3. Step 3: Cross multiply
    311,843.25x = 502,216.88 × 502,216.88
  4. Step 4: Simplify right side
    311,843.25x = 252,221,789,534.77
  5. Step 5: Solve for x
    x = 252,221,789,534.77/311,843.25
  6. Step 6: Final answer
    x = 808,809.52

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.