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Finding the Third Proportional to 127,561.50 and 278,087

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Solution

The third proportional to 127,561.50 and 278,087 is: 606,236.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,561.50 : 278,087 = 278,087 : x
  2. Step 2: Convert to fraction form
    127,561.50/278,087 = 278,087/x
  3. Step 3: Cross multiply
    127,561.50x = 278,087 × 278,087
  4. Step 4: Simplify right side
    127,561.50x = 77,332,379,569
  5. Step 5: Solve for x
    x = 77,332,379,569/127,561.50
  6. Step 6: Final answer
    x = 606,236.05

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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.