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Finding the Fourth Proportional to 325,427.72, 488,029.08 and 154,629.68

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Solution

The fourth proportional to 325,427.72, 488,029.08 and 154,629.68 is: 231,891.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,427.72 : 488,029.08 = 154,629.68 : x
  2. Step 2: Convert to fraction form
    325,427.72/488,029.08 = 154,629.68/x
  3. Step 3: Cross multiply
    325,427.72x = 488,029.08 × 154,629.68
  4. Step 4: Simplify right side
    325,427.72x = 75,463,780,471.09
  5. Step 5: Solve for x
    x = 75,463,780,471.09/325,427.72
  6. Step 6: Final answer
    x = 231,891.06

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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.