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Finding the Third Proportional to 221,583 and 343,755

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Solution

The third proportional to 221,583 and 343,755 is: 533,287.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,583 : 343,755 = 343,755 : x
  2. Step 2: Convert to fraction form
    221,583/343,755 = 343,755/x
  3. Step 3: Cross multiply
    221,583x = 343,755 × 343,755
  4. Step 4: Simplify right side
    221,583x = 118,167,500,025
  5. Step 5: Solve for x
    x = 118,167,500,025/221,583
  6. Step 6: Final answer
    x = 533,287.75

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.