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Finding the Third Proportional to 136,772 and 300,472

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Solution

The third proportional to 136,772 and 300,472 is: 660,101.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,772 : 300,472 = 300,472 : x
  2. Step 2: Convert to fraction form
    136,772/300,472 = 300,472/x
  3. Step 3: Cross multiply
    136,772x = 300,472 × 300,472
  4. Step 4: Simplify right side
    136,772x = 90,283,422,784
  5. Step 5: Solve for x
    x = 90,283,422,784/136,772
  6. Step 6: Final answer
    x = 660,101.65

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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.