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Finding the Third Proportional to 70,485.75 and 154,991.25

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Solution

The third proportional to 70,485.75 and 154,991.25 is: 340,810.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,485.75 : 154,991.25 = 154,991.25 : x
  2. Step 2: Convert to fraction form
    70,485.75/154,991.25 = 154,991.25/x
  3. Step 3: Cross multiply
    70,485.75x = 154,991.25 × 154,991.25
  4. Step 4: Simplify right side
    70,485.75x = 24,022,287,576.56
  5. Step 5: Solve for x
    x = 24,022,287,576.56/70,485.75
  6. Step 6: Final answer
    x = 340,810.55

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.