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Finding the Fourth Proportional to 288,940.24, 398,640.46 and 167,982.74

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Solution

The fourth proportional to 288,940.24, 398,640.46 and 167,982.74 is: 231,759.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,940.24 : 398,640.46 = 167,982.74 : x
  2. Step 2: Convert to fraction form
    288,940.24/398,640.46 = 167,982.74/x
  3. Step 3: Cross multiply
    288,940.24x = 398,640.46 × 167,982.74
  4. Step 4: Simplify right side
    288,940.24x = 66,964,716,745.66
  5. Step 5: Solve for x
    x = 66,964,716,745.66/288,940.24
  6. Step 6: Final answer
    x = 231,759.75

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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.