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Finding the Third Proportional to 203,540 and 299,210

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Solution

The third proportional to 203,540 and 299,210 is: 439,847.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,540 : 299,210 = 299,210 : x
  2. Step 2: Convert to fraction form
    203,540/299,210 = 299,210/x
  3. Step 3: Cross multiply
    203,540x = 299,210 × 299,210
  4. Step 4: Simplify right side
    203,540x = 89,526,624,100
  5. Step 5: Solve for x
    x = 89,526,624,100/203,540
  6. Step 6: Final answer
    x = 439,847.81

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.