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Finding the Third Proportional to 176,628 and 381,426

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Solution

The third proportional to 176,628 and 381,426 is: 823,684.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,628 : 381,426 = 381,426 : x
  2. Step 2: Convert to fraction form
    176,628/381,426 = 381,426/x
  3. Step 3: Cross multiply
    176,628x = 381,426 × 381,426
  4. Step 4: Simplify right side
    176,628x = 145,485,793,476
  5. Step 5: Solve for x
    x = 145,485,793,476/176,628
  6. Step 6: Final answer
    x = 823,684.77

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.