Home / 231,361.26-319,276.29-129,385.56

Finding the Fourth Proportional to 231,361.26, 319,276.29 and 129,385.56

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Solution

The fourth proportional to 231,361.26, 319,276.29 and 129,385.56 is: 178,550.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,361.26 : 319,276.29 = 129,385.56 : x
  2. Step 2: Convert to fraction form
    231,361.26/319,276.29 = 129,385.56/x
  3. Step 3: Cross multiply
    231,361.26x = 319,276.29 × 129,385.56
  4. Step 4: Simplify right side
    231,361.26x = 41,309,741,576.37
  5. Step 5: Solve for x
    x = 41,309,741,576.37/231,361.26
  6. Step 6: Final answer
    x = 178,550.82

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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.