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Finding the Third Proportional to 51,120 and 104,310

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Solution

The third proportional to 51,120 and 104,310 is: 212,843.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,120 : 104,310 = 104,310 : x
  2. Step 2: Convert to fraction form
    51,120/104,310 = 104,310/x
  3. Step 3: Cross multiply
    51,120x = 104,310 × 104,310
  4. Step 4: Simplify right side
    51,120x = 10,880,576,100
  5. Step 5: Solve for x
    x = 10,880,576,100/51,120
  6. Step 6: Final answer
    x = 212,843.82

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.