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Finding the Third Proportional to 225,216 and 316,764

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Solution

The third proportional to 225,216 and 316,764 is: 445,525.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,216 : 316,764 = 316,764 : x
  2. Step 2: Convert to fraction form
    225,216/316,764 = 316,764/x
  3. Step 3: Cross multiply
    225,216x = 316,764 × 316,764
  4. Step 4: Simplify right side
    225,216x = 100,339,431,696
  5. Step 5: Solve for x
    x = 100,339,431,696/225,216
  6. Step 6: Final answer
    x = 445,525.33

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.