Home / 263,080.72-394,679.52-122,762.80

Finding the Fourth Proportional to 263,080.72, 394,679.52 and 122,762.80

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Solution

The fourth proportional to 263,080.72, 394,679.52 and 122,762.80 is: 184,171.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,080.72 : 394,679.52 = 122,762.80 : x
  2. Step 2: Convert to fraction form
    263,080.72/394,679.52 = 122,762.80/x
  3. Step 3: Cross multiply
    263,080.72x = 394,679.52 × 122,762.80
  4. Step 4: Simplify right side
    263,080.72x = 48,451,962,977.86
  5. Step 5: Solve for x
    x = 48,451,962,977.86/263,080.72
  6. Step 6: Final answer
    x = 184,171.47

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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.