Home / 263,584.20-395,376.30-121,429.20

Finding the Fourth Proportional to 263,584.20, 395,376.30 and 121,429.20

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Solution

The fourth proportional to 263,584.20, 395,376.30 and 121,429.20 is: 182,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,584.20 : 395,376.30 = 121,429.20 : x
  2. Step 2: Convert to fraction form
    263,584.20/395,376.30 = 121,429.20/x
  3. Step 3: Cross multiply
    263,584.20x = 395,376.30 × 121,429.20
  4. Step 4: Simplify right side
    263,584.20x = 48,010,227,807.96
  5. Step 5: Solve for x
    x = 48,010,227,807.96/263,584.20
  6. Step 6: Final answer
    x = 182,143.80

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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.