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Finding the Third Proportional to 21,356 and 49,157

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Solution

The third proportional to 21,356 and 49,157 is: 113,149.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,356 : 49,157 = 49,157 : x
  2. Step 2: Convert to fraction form
    21,356/49,157 = 49,157/x
  3. Step 3: Cross multiply
    21,356x = 49,157 × 49,157
  4. Step 4: Simplify right side
    21,356x = 2,416,410,649
  5. Step 5: Solve for x
    x = 2,416,410,649/21,356
  6. Step 6: Final answer
    x = 113,149.03

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.