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Finding the Third Proportional to 127,554 and 278,420.25

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Solution

The third proportional to 127,554 and 278,420.25 is: 607,725.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,554 : 278,420.25 = 278,420.25 : x
  2. Step 2: Convert to fraction form
    127,554/278,420.25 = 278,420.25/x
  3. Step 3: Cross multiply
    127,554x = 278,420.25 × 278,420.25
  4. Step 4: Simplify right side
    127,554x = 77,517,835,610.06
  5. Step 5: Solve for x
    x = 77,517,835,610.06/127,554
  6. Step 6: Final answer
    x = 607,725.63

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.