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Finding the Third Proportional to 66,738 and 146,724

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Solution

The third proportional to 66,738 and 146,724 is: 322,573.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,738 : 146,724 = 146,724 : x
  2. Step 2: Convert to fraction form
    66,738/146,724 = 146,724/x
  3. Step 3: Cross multiply
    66,738x = 146,724 × 146,724
  4. Step 4: Simplify right side
    66,738x = 21,527,932,176
  5. Step 5: Solve for x
    x = 21,527,932,176/66,738
  6. Step 6: Final answer
    x = 322,573.83

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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.