Home / 268,909.46-403,367.44-81,922.58

Finding the Fourth Proportional to 268,909.46, 403,367.44 and 81,922.58

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Solution

The fourth proportional to 268,909.46, 403,367.44 and 81,922.58 is: 122,884.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,909.46 : 403,367.44 = 81,922.58 : x
  2. Step 2: Convert to fraction form
    268,909.46/403,367.44 = 81,922.58/x
  3. Step 3: Cross multiply
    268,909.46x = 403,367.44 × 81,922.58
  4. Step 4: Simplify right side
    268,909.46x = 33,044,901,372.80
  5. Step 5: Solve for x
    x = 33,044,901,372.80/268,909.46
  6. Step 6: Final answer
    x = 122,884.86

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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.