Home / 288,621.92-398,297.04-161,297.48

Finding the Fourth Proportional to 288,621.92, 398,297.04 and 161,297.48

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Solution

The fourth proportional to 288,621.92, 398,297.04 and 161,297.48 is: 222,589.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,621.92 : 398,297.04 = 161,297.48 : x
  2. Step 2: Convert to fraction form
    288,621.92/398,297.04 = 161,297.48/x
  3. Step 3: Cross multiply
    288,621.92x = 398,297.04 × 161,297.48
  4. Step 4: Simplify right side
    288,621.92x = 64,244,308,843.46
  5. Step 5: Solve for x
    x = 64,244,308,843.46/288,621.92
  6. Step 6: Final answer
    x = 222,589.85

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1.5x scale

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.