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Finding the Third Proportional to 225,243 and 485,388

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Solution

The third proportional to 225,243 and 485,388 is: 1,045,988.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,243 : 485,388 = 485,388 : x
  2. Step 2: Convert to fraction form
    225,243/485,388 = 485,388/x
  3. Step 3: Cross multiply
    225,243x = 485,388 × 485,388
  4. Step 4: Simplify right side
    225,243x = 235,601,510,544
  5. Step 5: Solve for x
    x = 235,601,510,544/225,243
  6. Step 6: Final answer
    x = 1,045,988.16

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.