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Finding the Third Proportional to 132,118.50 and 198,219

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Solution

The third proportional to 132,118.50 and 198,219 is: 297,390.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,118.50 : 198,219 = 198,219 : x
  2. Step 2: Convert to fraction form
    132,118.50/198,219 = 198,219/x
  3. Step 3: Cross multiply
    132,118.50x = 198,219 × 198,219
  4. Step 4: Simplify right side
    132,118.50x = 39,290,771,961
  5. Step 5: Solve for x
    x = 39,290,771,961/132,118.50
  6. Step 6: Final answer
    x = 297,390.39

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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.