Home / 262,629.69-394,067.58-129,437.28

Finding the Fourth Proportional to 262,629.69, 394,067.58 and 129,437.28

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Solution

The fourth proportional to 262,629.69, 394,067.58 and 129,437.28 is: 194,216.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,629.69 : 394,067.58 = 129,437.28 : x
  2. Step 2: Convert to fraction form
    262,629.69/394,067.58 = 129,437.28/x
  3. Step 3: Cross multiply
    262,629.69x = 394,067.58 × 129,437.28
  4. Step 4: Simplify right side
    262,629.69x = 51,007,035,691.38
  5. Step 5: Solve for x
    x = 51,007,035,691.38/262,629.69
  6. Step 6: Final answer
    x = 194,216.56

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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.