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Finding the Third Proportional to 138,897.28 and 303,628.50

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Solution

The third proportional to 138,897.28 and 303,628.50 is: 663,729.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,897.28 : 303,628.50 = 303,628.50 : x
  2. Step 2: Convert to fraction form
    138,897.28/303,628.50 = 303,628.50/x
  3. Step 3: Cross multiply
    138,897.28x = 303,628.50 × 303,628.50
  4. Step 4: Simplify right side
    138,897.28x = 92,190,266,012.25
  5. Step 5: Solve for x
    x = 92,190,266,012.25/138,897.28
  6. Step 6: Final answer
    x = 663,729.81

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.