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Finding the Third Proportional to 132,990.75 and 199,015.50

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Solution

The third proportional to 132,990.75 and 199,015.50 is: 297,818.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,990.75 : 199,015.50 = 199,015.50 : x
  2. Step 2: Convert to fraction form
    132,990.75/199,015.50 = 199,015.50/x
  3. Step 3: Cross multiply
    132,990.75x = 199,015.50 × 199,015.50
  4. Step 4: Simplify right side
    132,990.75x = 39,607,169,240.25
  5. Step 5: Solve for x
    x = 39,607,169,240.25/132,990.75
  6. Step 6: Final answer
    x = 297,818.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.