Home / 263,148.75-394,565.04-120,815.91

Finding the Fourth Proportional to 263,148.75, 394,565.04 and 120,815.91

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Solution

The fourth proportional to 263,148.75, 394,565.04 and 120,815.91 is: 181,151.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,148.75 : 394,565.04 = 120,815.91 : x
  2. Step 2: Convert to fraction form
    263,148.75/394,565.04 = 120,815.91/x
  3. Step 3: Cross multiply
    263,148.75x = 394,565.04 × 120,815.91
  4. Step 4: Simplify right side
    263,148.75x = 47,669,734,361.79
  5. Step 5: Solve for x
    x = 47,669,734,361.79/263,148.75
  6. Step 6: Final answer
    x = 181,151.29

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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.