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Finding the Third Proportional to 70,719 and 153,885

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Solution

The third proportional to 70,719 and 153,885 is: 334,854.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,719 : 153,885 = 153,885 : x
  2. Step 2: Convert to fraction form
    70,719/153,885 = 153,885/x
  3. Step 3: Cross multiply
    70,719x = 153,885 × 153,885
  4. Step 4: Simplify right side
    70,719x = 23,680,593,225
  5. Step 5: Solve for x
    x = 23,680,593,225/70,719
  6. Step 6: Final answer
    x = 334,854.75

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.