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Finding the Third Proportional to 69,328 and 148,512

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Solution

The third proportional to 69,328 and 148,512 is: 318,137.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,328 : 148,512 = 148,512 : x
  2. Step 2: Convert to fraction form
    69,328/148,512 = 148,512/x
  3. Step 3: Cross multiply
    69,328x = 148,512 × 148,512
  4. Step 4: Simplify right side
    69,328x = 22,055,814,144
  5. Step 5: Solve for x
    x = 22,055,814,144/69,328
  6. Step 6: Final answer
    x = 318,137.18

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.