Home / 377,138.18-520,452.79-205,057.83

Finding the Fourth Proportional to 377,138.18, 520,452.79 and 205,057.83

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Solution

The fourth proportional to 377,138.18, 520,452.79 and 205,057.83 is: 282,980.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,138.18 : 520,452.79 = 205,057.83 : x
  2. Step 2: Convert to fraction form
    377,138.18/520,452.79 = 205,057.83/x
  3. Step 3: Cross multiply
    377,138.18x = 520,452.79 × 205,057.83
  4. Step 4: Simplify right side
    377,138.18x = 106,722,919,399.80
  5. Step 5: Solve for x
    x = 106,722,919,399.80/377,138.18
  6. Step 6: Final answer
    x = 282,980.95

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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.