Home / 263,571.92-395,298.62-121,280.72

Finding the Fourth Proportional to 263,571.92, 395,298.62 and 121,280.72

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Solution

The fourth proportional to 263,571.92, 395,298.62 and 121,280.72 is: 181,893.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,571.92 : 395,298.62 = 121,280.72 : x
  2. Step 2: Convert to fraction form
    263,571.92/395,298.62 = 121,280.72/x
  3. Step 3: Cross multiply
    263,571.92x = 395,298.62 × 121,280.72
  4. Step 4: Simplify right side
    263,571.92x = 47,942,101,248.61
  5. Step 5: Solve for x
    x = 47,942,101,248.61/263,571.92
  6. Step 6: Final answer
    x = 181,893.81

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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.