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Finding the Third Proportional to 127,288.50 and 251,362.50

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Solution

The third proportional to 127,288.50 and 251,362.50 is: 496,377.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,288.50 : 251,362.50 = 251,362.50 : x
  2. Step 2: Convert to fraction form
    127,288.50/251,362.50 = 251,362.50/x
  3. Step 3: Cross multiply
    127,288.50x = 251,362.50 × 251,362.50
  4. Step 4: Simplify right side
    127,288.50x = 63,183,106,406.25
  5. Step 5: Solve for x
    x = 63,183,106,406.25/127,288.50
  6. Step 6: Final answer
    x = 496,377.18

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.