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Finding the Third Proportional to 139,010 and 305,668

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Solution

The third proportional to 139,010 and 305,668 is: 672,130.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,010 : 305,668 = 305,668 : x
  2. Step 2: Convert to fraction form
    139,010/305,668 = 305,668/x
  3. Step 3: Cross multiply
    139,010x = 305,668 × 305,668
  4. Step 4: Simplify right side
    139,010x = 93,432,926,224
  5. Step 5: Solve for x
    x = 93,432,926,224/139,010
  6. Step 6: Final answer
    x = 672,130.97

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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.