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Finding the Third Proportional to 56,477 and 122,791

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Solution

The third proportional to 56,477 and 122,791 is: 266,969.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,477 : 122,791 = 122,791 : x
  2. Step 2: Convert to fraction form
    56,477/122,791 = 122,791/x
  3. Step 3: Cross multiply
    56,477x = 122,791 × 122,791
  4. Step 4: Simplify right side
    56,477x = 15,077,629,681
  5. Step 5: Solve for x
    x = 15,077,629,681/56,477
  6. Step 6: Final answer
    x = 266,969.38

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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.