Home / 284,015.20-425,949.76-84,288.32

Finding the Fourth Proportional to 284,015.20, 425,949.76 and 84,288.32

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Solution

The fourth proportional to 284,015.20, 425,949.76 and 84,288.32 is: 126,410.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,015.20 : 425,949.76 = 84,288.32 : x
  2. Step 2: Convert to fraction form
    284,015.20/425,949.76 = 84,288.32/x
  3. Step 3: Cross multiply
    284,015.20x = 425,949.76 × 84,288.32
  4. Step 4: Simplify right side
    284,015.20x = 35,902,589,674.80
  5. Step 5: Solve for x
    x = 35,902,589,674.80/284,015.20
  6. Step 6: Final answer
    x = 126,410.80

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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.