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Finding the Third Proportional to 70,719.75 and 154,561.50

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Solution

The third proportional to 70,719.75 and 154,561.50 is: 337,801.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,719.75 : 154,561.50 = 154,561.50 : x
  2. Step 2: Convert to fraction form
    70,719.75/154,561.50 = 154,561.50/x
  3. Step 3: Cross multiply
    70,719.75x = 154,561.50 × 154,561.50
  4. Step 4: Simplify right side
    70,719.75x = 23,889,257,282.25
  5. Step 5: Solve for x
    x = 23,889,257,282.25/70,719.75
  6. Step 6: Final answer
    x = 337,801.78

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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.