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Finding the Fourth Proportional to 288,358.56, 397,930.86 and 167,568.12

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Solution

The fourth proportional to 288,358.56, 397,930.86 and 167,568.12 is: 231,241.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,358.56 : 397,930.86 = 167,568.12 : x
  2. Step 2: Convert to fraction form
    288,358.56/397,930.86 = 167,568.12/x
  3. Step 3: Cross multiply
    288,358.56x = 397,930.86 × 167,568.12
  4. Step 4: Simplify right side
    288,358.56x = 66,680,526,100.18
  5. Step 5: Solve for x
    x = 66,680,526,100.18/288,358.56
  6. Step 6: Final answer
    x = 231,241.71

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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.