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Finding the Third Proportional to 142,048.69 and 306,240.75

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Solution

The third proportional to 142,048.69 and 306,240.75 is: 660,220.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,048.69 : 306,240.75 = 306,240.75 : x
  2. Step 2: Convert to fraction form
    142,048.69/306,240.75 = 306,240.75/x
  3. Step 3: Cross multiply
    142,048.69x = 306,240.75 × 306,240.75
  4. Step 4: Simplify right side
    142,048.69x = 93,783,396,960.56
  5. Step 5: Solve for x
    x = 93,783,396,960.56/142,048.69
  6. Step 6: Final answer
    x = 660,220.09

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.