Home / 275,787.02-380,254.98-199,183.70

Finding the Fourth Proportional to 275,787.02, 380,254.98 and 199,183.70

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Solution

The fourth proportional to 275,787.02, 380,254.98 and 199,183.70 is: 274,634.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,787.02 : 380,254.98 = 199,183.70 : x
  2. Step 2: Convert to fraction form
    275,787.02/380,254.98 = 199,183.70/x
  3. Step 3: Cross multiply
    275,787.02x = 380,254.98 × 199,183.70
  4. Step 4: Simplify right side
    275,787.02x = 75,740,593,859.83
  5. Step 5: Solve for x
    x = 75,740,593,859.83/275,787.02
  6. Step 6: Final answer
    x = 274,634.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.