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Finding the Third Proportional to 218,675 and 473,620

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Solution

The third proportional to 218,675 and 473,620 is: 1,025,795.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,675 : 473,620 = 473,620 : x
  2. Step 2: Convert to fraction form
    218,675/473,620 = 473,620/x
  3. Step 3: Cross multiply
    218,675x = 473,620 × 473,620
  4. Step 4: Simplify right side
    218,675x = 224,315,904,400
  5. Step 5: Solve for x
    x = 224,315,904,400/218,675
  6. Step 6: Final answer
    x = 1,025,795.84

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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.