Home / 263,142.78-394,772.49-122,824.86

Finding the Fourth Proportional to 263,142.78, 394,772.49 and 122,824.86

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Solution

The fourth proportional to 263,142.78, 394,772.49 and 122,824.86 is: 184,264.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,142.78 : 394,772.49 = 122,824.86 : x
  2. Step 2: Convert to fraction form
    263,142.78/394,772.49 = 122,824.86/x
  3. Step 3: Cross multiply
    263,142.78x = 394,772.49 × 122,824.86
  4. Step 4: Simplify right side
    263,142.78x = 48,487,875,816.10
  5. Step 5: Solve for x
    x = 48,487,875,816.10/263,142.78
  6. Step 6: Final answer
    x = 184,264.51

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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.