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Finding the Fourth Proportional to 275,166.88, 412,750.32 and 220,112.80

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Solution

The fourth proportional to 275,166.88, 412,750.32 and 220,112.80 is: 330,169.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,166.88 : 412,750.32 = 220,112.80 : x
  2. Step 2: Convert to fraction form
    275,166.88/412,750.32 = 220,112.80/x
  3. Step 3: Cross multiply
    275,166.88x = 412,750.32 × 220,112.80
  4. Step 4: Simplify right side
    275,166.88x = 90,851,628,636.10
  5. Step 5: Solve for x
    x = 90,851,628,636.10/275,166.88
  6. Step 6: Final answer
    x = 330,169.20

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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.