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Finding the Third Proportional to 68,424 and 149,916

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Solution

The third proportional to 68,424 and 149,916 is: 328,463.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,424 : 149,916 = 149,916 : x
  2. Step 2: Convert to fraction form
    68,424/149,916 = 149,916/x
  3. Step 3: Cross multiply
    68,424x = 149,916 × 149,916
  4. Step 4: Simplify right side
    68,424x = 22,474,807,056
  5. Step 5: Solve for x
    x = 22,474,807,056/68,424
  6. Step 6: Final answer
    x = 328,463.80

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.