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Finding the Third Proportional to 136,504 and 206,664

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Solution

The third proportional to 136,504 and 206,664 is: 312,884.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,504 : 206,664 = 206,664 : x
  2. Step 2: Convert to fraction form
    136,504/206,664 = 206,664/x
  3. Step 3: Cross multiply
    136,504x = 206,664 × 206,664
  4. Step 4: Simplify right side
    136,504x = 42,710,008,896
  5. Step 5: Solve for x
    x = 42,710,008,896/136,504
  6. Step 6: Final answer
    x = 312,884.67

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.