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Finding the Third Proportional to 66,908 and 124,240

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Solution

The third proportional to 66,908 and 124,240 is: 230,698.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,908 : 124,240 = 124,240 : x
  2. Step 2: Convert to fraction form
    66,908/124,240 = 124,240/x
  3. Step 3: Cross multiply
    66,908x = 124,240 × 124,240
  4. Step 4: Simplify right side
    66,908x = 15,435,577,600
  5. Step 5: Solve for x
    x = 15,435,577,600/66,908
  6. Step 6: Final answer
    x = 230,698.54

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.