Home / 263,142.16-394,653.71-120,850.64

Finding the Fourth Proportional to 263,142.16, 394,653.71 and 120,850.64

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Solution

The fourth proportional to 263,142.16, 394,653.71 and 120,850.64 is: 181,248.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,142.16 : 394,653.71 = 120,850.64 : x
  2. Step 2: Convert to fraction form
    263,142.16/394,653.71 = 120,850.64/x
  3. Step 3: Cross multiply
    263,142.16x = 394,653.71 × 120,850.64
  4. Step 4: Simplify right side
    263,142.16x = 47,694,153,431.87
  5. Step 5: Solve for x
    x = 47,694,153,431.87/263,142.16
  6. Step 6: Final answer
    x = 181,248.62

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1.5x scale

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.