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Finding the Third Proportional to 62,400 and 136,824

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Solution

The third proportional to 62,400 and 136,824 is: 300,012.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,400 : 136,824 = 136,824 : x
  2. Step 2: Convert to fraction form
    62,400/136,824 = 136,824/x
  3. Step 3: Cross multiply
    62,400x = 136,824 × 136,824
  4. Step 4: Simplify right side
    62,400x = 18,720,806,976
  5. Step 5: Solve for x
    x = 18,720,806,976/62,400
  6. Step 6: Final answer
    x = 300,012.93

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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.