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Finding the Third Proportional to 56,354 and 122,438

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Solution

The third proportional to 56,354 and 122,438 is: 266,015.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,354 : 122,438 = 122,438 : x
  2. Step 2: Convert to fraction form
    56,354/122,438 = 122,438/x
  3. Step 3: Cross multiply
    56,354x = 122,438 × 122,438
  4. Step 4: Simplify right side
    56,354x = 14,991,063,844
  5. Step 5: Solve for x
    x = 14,991,063,844/56,354
  6. Step 6: Final answer
    x = 266,015.97

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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.