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Finding the Third Proportional to 127,509 and 280,181

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Solution

The third proportional to 127,509 and 280,181 is: 615,653.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,509 : 280,181 = 280,181 : x
  2. Step 2: Convert to fraction form
    127,509/280,181 = 280,181/x
  3. Step 3: Cross multiply
    127,509x = 280,181 × 280,181
  4. Step 4: Simplify right side
    127,509x = 78,501,392,761
  5. Step 5: Solve for x
    x = 78,501,392,761/127,509
  6. Step 6: Final answer
    x = 615,653.74

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.