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Finding the Third Proportional to 138,717.56 and 303,117.19

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Solution

The third proportional to 138,717.56 and 303,117.19 is: 662,353.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,717.56 : 303,117.19 = 303,117.19 : x
  2. Step 2: Convert to fraction form
    138,717.56/303,117.19 = 303,117.19/x
  3. Step 3: Cross multiply
    138,717.56x = 303,117.19 × 303,117.19
  4. Step 4: Simplify right side
    138,717.56x = 91,880,029,357.91
  5. Step 5: Solve for x
    x = 91,880,029,357.91/138,717.56
  6. Step 6: Final answer
    x = 662,353.26

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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.