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Finding the Third Proportional to 188,423 and 409,569

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Solution

The third proportional to 188,423 and 409,569 is: 890,266.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,423 : 409,569 = 409,569 : x
  2. Step 2: Convert to fraction form
    188,423/409,569 = 409,569/x
  3. Step 3: Cross multiply
    188,423x = 409,569 × 409,569
  4. Step 4: Simplify right side
    188,423x = 167,746,765,761
  5. Step 5: Solve for x
    x = 167,746,765,761/188,423
  6. Step 6: Final answer
    x = 890,266.93

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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.