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Finding the Third Proportional to 153,187 and 336,611

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Solution

The third proportional to 153,187 and 336,611 is: 739,664.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,187 : 336,611 = 336,611 : x
  2. Step 2: Convert to fraction form
    153,187/336,611 = 336,611/x
  3. Step 3: Cross multiply
    153,187x = 336,611 × 336,611
  4. Step 4: Simplify right side
    153,187x = 113,306,965,321
  5. Step 5: Solve for x
    x = 113,306,965,321/153,187
  6. Step 6: Final answer
    x = 739,664.37

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.