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Finding the Third Proportional to 272,659.50 and 636,815.25

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Solution

The third proportional to 272,659.50 and 636,815.25 is: 1,487,326.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,659.50 : 636,815.25 = 636,815.25 : x
  2. Step 2: Convert to fraction form
    272,659.50/636,815.25 = 636,815.25/x
  3. Step 3: Cross multiply
    272,659.50x = 636,815.25 × 636,815.25
  4. Step 4: Simplify right side
    272,659.50x = 405,533,662,632.56
  5. Step 5: Solve for x
    x = 405,533,662,632.56/272,659.50
  6. Step 6: Final answer
    x = 1,487,326.36

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.