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Finding the Third Proportional to 243,659 and 365,488

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Solution

The third proportional to 243,659 and 365,488 is: 548,231.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,659 : 365,488 = 365,488 : x
  2. Step 2: Convert to fraction form
    243,659/365,488 = 365,488/x
  3. Step 3: Cross multiply
    243,659x = 365,488 × 365,488
  4. Step 4: Simplify right side
    243,659x = 133,581,478,144
  5. Step 5: Solve for x
    x = 133,581,478,144/243,659
  6. Step 6: Final answer
    x = 548,231.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.