Home / 281,559.90-422,336.25-68,329.56

Finding the Fourth Proportional to 281,559.90, 422,336.25 and 68,329.56

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Solution

The fourth proportional to 281,559.90, 422,336.25 and 68,329.56 is: 102,493.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,559.90 : 422,336.25 = 68,329.56 : x
  2. Step 2: Convert to fraction form
    281,559.90/422,336.25 = 68,329.56/x
  3. Step 3: Cross multiply
    281,559.90x = 422,336.25 × 68,329.56
  4. Step 4: Simplify right side
    281,559.90x = 28,858,050,134.55
  5. Step 5: Solve for x
    x = 28,858,050,134.55/281,559.90
  6. Step 6: Final answer
    x = 102,493.47

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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.