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Finding the Third Proportional to 138,313.50 and 301,761.75

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Solution

The third proportional to 138,313.50 and 301,761.75 is: 658,360.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,313.50 : 301,761.75 = 301,761.75 : x
  2. Step 2: Convert to fraction form
    138,313.50/301,761.75 = 301,761.75/x
  3. Step 3: Cross multiply
    138,313.50x = 301,761.75 × 301,761.75
  4. Step 4: Simplify right side
    138,313.50x = 91,060,153,763.06
  5. Step 5: Solve for x
    x = 91,060,153,763.06/138,313.50
  6. Step 6: Final answer
    x = 658,360.56

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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.