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Finding the Third Proportional to 201,211 and 426,403

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Solution

The third proportional to 201,211 and 426,403 is: 903,626.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,211 : 426,403 = 426,403 : x
  2. Step 2: Convert to fraction form
    201,211/426,403 = 426,403/x
  3. Step 3: Cross multiply
    201,211x = 426,403 × 426,403
  4. Step 4: Simplify right side
    201,211x = 181,819,518,409
  5. Step 5: Solve for x
    x = 181,819,518,409/201,211
  6. Step 6: Final answer
    x = 903,626.14

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.