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Finding the Third Proportional to 197,931 and 426,477

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Solution

The third proportional to 197,931 and 426,477 is: 918,919.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,931 : 426,477 = 426,477 : x
  2. Step 2: Convert to fraction form
    197,931/426,477 = 426,477/x
  3. Step 3: Cross multiply
    197,931x = 426,477 × 426,477
  4. Step 4: Simplify right side
    197,931x = 181,882,631,529
  5. Step 5: Solve for x
    x = 181,882,631,529/197,931
  6. Step 6: Final answer
    x = 918,919.38

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.