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Finding the Fourth Proportional to 220,770.29, 330,955.77 and 80,496.11

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Solution

The fourth proportional to 220,770.29, 330,955.77 and 80,496.11 is: 120,671.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,770.29 : 330,955.77 = 80,496.11 : x
  2. Step 2: Convert to fraction form
    220,770.29/330,955.77 = 80,496.11/x
  3. Step 3: Cross multiply
    220,770.29x = 330,955.77 × 80,496.11
  4. Step 4: Simplify right side
    220,770.29x = 26,640,652,067.05
  5. Step 5: Solve for x
    x = 26,640,652,067.05/220,770.29
  6. Step 6: Final answer
    x = 120,671.36

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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.