Home / 321,436.24-481,977.72-255,299.92

Finding the Fourth Proportional to 321,436.24, 481,977.72 and 255,299.92

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Solution

The fourth proportional to 321,436.24, 481,977.72 and 255,299.92 is: 382,809.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,436.24 : 481,977.72 = 255,299.92 : x
  2. Step 2: Convert to fraction form
    321,436.24/481,977.72 = 255,299.92/x
  3. Step 3: Cross multiply
    321,436.24x = 481,977.72 × 255,299.92
  4. Step 4: Simplify right side
    321,436.24x = 123,048,873,357.78
  5. Step 5: Solve for x
    x = 123,048,873,357.78/321,436.24
  6. Step 6: Final answer
    x = 382,809.58

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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.