Home / 262,629.86-394,067.80-129,437.51

Finding the Fourth Proportional to 262,629.86, 394,067.80 and 129,437.51

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Solution

The fourth proportional to 262,629.86, 394,067.80 and 129,437.51 is: 194,216.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,629.86 : 394,067.80 = 129,437.51 : x
  2. Step 2: Convert to fraction form
    262,629.86/394,067.80 = 129,437.51/x
  3. Step 3: Cross multiply
    262,629.86x = 394,067.80 × 129,437.51
  4. Step 4: Simplify right side
    262,629.86x = 51,007,152,994.64
  5. Step 5: Solve for x
    x = 51,007,152,994.64/262,629.86
  6. Step 6: Final answer
    x = 194,216.89

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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.