Home / 288,522.06-398,153.07-161,198.46

Finding the Fourth Proportional to 288,522.06, 398,153.07 and 161,198.46

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Solution

The fourth proportional to 288,522.06, 398,153.07 and 161,198.46 is: 222,449.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,522.06 : 398,153.07 = 161,198.46 : x
  2. Step 2: Convert to fraction form
    288,522.06/398,153.07 = 161,198.46/x
  3. Step 3: Cross multiply
    288,522.06x = 398,153.07 × 161,198.46
  4. Step 4: Simplify right side
    288,522.06x = 64,181,661,728.27
  5. Step 5: Solve for x
    x = 64,181,661,728.27/288,522.06
  6. Step 6: Final answer
    x = 222,449.76

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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.