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Finding the Third Proportional to 156,523.50 and 209,688.75

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Solution

The third proportional to 156,523.50 and 209,688.75 is: 280,912.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,523.50 : 209,688.75 = 209,688.75 : x
  2. Step 2: Convert to fraction form
    156,523.50/209,688.75 = 209,688.75/x
  3. Step 3: Cross multiply
    156,523.50x = 209,688.75 × 209,688.75
  4. Step 4: Simplify right side
    156,523.50x = 43,969,371,876.56
  5. Step 5: Solve for x
    x = 43,969,371,876.56/156,523.50
  6. Step 6: Final answer
    x = 280,912.27

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.