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Finding the Third Proportional to 253,489.50 and 556,551

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Solution

The third proportional to 253,489.50 and 556,551 is: 1,221,940.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,489.50 : 556,551 = 556,551 : x
  2. Step 2: Convert to fraction form
    253,489.50/556,551 = 556,551/x
  3. Step 3: Cross multiply
    253,489.50x = 556,551 × 556,551
  4. Step 4: Simplify right side
    253,489.50x = 309,749,015,601
  5. Step 5: Solve for x
    x = 309,749,015,601/253,489.50
  6. Step 6: Final answer
    x = 1,221,940.22

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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.