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Finding the Third Proportional to 56,385 and 122,606

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Solution

The third proportional to 56,385 and 122,606 is: 266,599.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,385 : 122,606 = 122,606 : x
  2. Step 2: Convert to fraction form
    56,385/122,606 = 122,606/x
  3. Step 3: Cross multiply
    56,385x = 122,606 × 122,606
  4. Step 4: Simplify right side
    56,385x = 15,032,231,236
  5. Step 5: Solve for x
    x = 15,032,231,236/56,385
  6. Step 6: Final answer
    x = 266,599.83

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.