Home / 320,854.20-481,754.38-178,976.66

Finding the Fourth Proportional to 320,854.20, 481,754.38 and 178,976.66

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Solution

The fourth proportional to 320,854.20, 481,754.38 and 178,976.66 is: 268,728.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,854.20 : 481,754.38 = 178,976.66 : x
  2. Step 2: Convert to fraction form
    320,854.20/481,754.38 = 178,976.66/x
  3. Step 3: Cross multiply
    320,854.20x = 481,754.38 × 178,976.66
  4. Step 4: Simplify right side
    320,854.20x = 86,222,789,872.77
  5. Step 5: Solve for x
    x = 86,222,789,872.77/320,854.20
  6. Step 6: Final answer
    x = 268,728.88

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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.