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Finding the Third Proportional to 172,376 and 365,620

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Solution

The third proportional to 172,376 and 365,620 is: 775,502.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,376 : 365,620 = 365,620 : x
  2. Step 2: Convert to fraction form
    172,376/365,620 = 365,620/x
  3. Step 3: Cross multiply
    172,376x = 365,620 × 365,620
  4. Step 4: Simplify right side
    172,376x = 133,677,984,400
  5. Step 5: Solve for x
    x = 133,677,984,400/172,376
  6. Step 6: Final answer
    x = 775,502.30

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.