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Finding the Third Proportional to 200,719 and 275,236

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Solution

The third proportional to 200,719 and 275,236 is: 377,417.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,719 : 275,236 = 275,236 : x
  2. Step 2: Convert to fraction form
    200,719/275,236 = 275,236/x
  3. Step 3: Cross multiply
    200,719x = 275,236 × 275,236
  4. Step 4: Simplify right side
    200,719x = 75,754,855,696
  5. Step 5: Solve for x
    x = 75,754,855,696/200,719
  6. Step 6: Final answer
    x = 377,417.46

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.