Home / 263,438.80-395,175.18-92,639.56

Finding the Fourth Proportional to 263,438.80, 395,175.18 and 92,639.56

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Solution

The fourth proportional to 263,438.80, 395,175.18 and 92,639.56 is: 138,965.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,438.80 : 395,175.18 = 92,639.56 : x
  2. Step 2: Convert to fraction form
    263,438.80/395,175.18 = 92,639.56/x
  3. Step 3: Cross multiply
    263,438.80x = 395,175.18 × 92,639.56
  4. Step 4: Simplify right side
    263,438.80x = 36,608,854,798.12
  5. Step 5: Solve for x
    x = 36,608,854,798.12/263,438.80
  6. Step 6: Final answer
    x = 138,965.31

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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.