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Finding the Fourth Proportional to 303,629.31, 419,005.72 and 167,660.33

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Solution

The fourth proportional to 303,629.31, 419,005.72 and 167,660.33 is: 231,369.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,629.31 : 419,005.72 = 167,660.33 : x
  2. Step 2: Convert to fraction form
    303,629.31/419,005.72 = 167,660.33/x
  3. Step 3: Cross multiply
    303,629.31x = 419,005.72 × 167,660.33
  4. Step 4: Simplify right side
    303,629.31x = 70,250,635,401.63
  5. Step 5: Solve for x
    x = 70,250,635,401.63/303,629.31
  6. Step 6: Final answer
    x = 231,369.74

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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.