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Finding the Third Proportional to 68,812.80 and 151,157.60

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Solution

The third proportional to 68,812.80 and 151,157.60 is: 332,040.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,812.80 : 151,157.60 = 151,157.60 : x
  2. Step 2: Convert to fraction form
    68,812.80/151,157.60 = 151,157.60/x
  3. Step 3: Cross multiply
    68,812.80x = 151,157.60 × 151,157.60
  4. Step 4: Simplify right side
    68,812.80x = 22,848,620,510.13
  5. Step 5: Solve for x
    x = 22,848,620,510.13/68,812.80
  6. Step 6: Final answer
    x = 332,040.24

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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.