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Finding the Third Proportional to 133,068 and 206,435

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Solution

The third proportional to 133,068 and 206,435 is: 320,252.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,068 : 206,435 = 206,435 : x
  2. Step 2: Convert to fraction form
    133,068/206,435 = 206,435/x
  3. Step 3: Cross multiply
    133,068x = 206,435 × 206,435
  4. Step 4: Simplify right side
    133,068x = 42,615,409,225
  5. Step 5: Solve for x
    x = 42,615,409,225/133,068
  6. Step 6: Final answer
    x = 320,252.87

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.