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Finding the Third Proportional to 68,388 and 150,240

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Solution

The third proportional to 68,388 and 150,240 is: 330,058.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,388 : 150,240 = 150,240 : x
  2. Step 2: Convert to fraction form
    68,388/150,240 = 150,240/x
  3. Step 3: Cross multiply
    68,388x = 150,240 × 150,240
  4. Step 4: Simplify right side
    68,388x = 22,572,057,600
  5. Step 5: Solve for x
    x = 22,572,057,600/68,388
  6. Step 6: Final answer
    x = 330,058.75

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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.