Home / 376,054.07-518,923.77-206,288.20

Finding the Fourth Proportional to 376,054.07, 518,923.77 and 206,288.20

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Solution

The fourth proportional to 376,054.07, 518,923.77 and 206,288.20 is: 284,660.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,054.07 : 518,923.77 = 206,288.20 : x
  2. Step 2: Convert to fraction form
    376,054.07/518,923.77 = 206,288.20/x
  3. Step 3: Cross multiply
    376,054.07x = 518,923.77 × 206,288.20
  4. Step 4: Simplify right side
    376,054.07x = 107,047,847,855.90
  5. Step 5: Solve for x
    x = 107,047,847,855.90/376,054.07
  6. Step 6: Final answer
    x = 284,660.79

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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.