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Finding the Third Proportional to 135,222.38 and 289,205.25

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Solution

The third proportional to 135,222.38 and 289,205.25 is: 618,534.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,222.38 : 289,205.25 = 289,205.25 : x
  2. Step 2: Convert to fraction form
    135,222.38/289,205.25 = 289,205.25/x
  3. Step 3: Cross multiply
    135,222.38x = 289,205.25 × 289,205.25
  4. Step 4: Simplify right side
    135,222.38x = 83,639,676,627.56
  5. Step 5: Solve for x
    x = 83,639,676,627.56/135,222.38
  6. Step 6: Final answer
    x = 618,534.30

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.