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Finding the Fourth Proportional to 281,885.52, 422,890.48 and 82,221.53

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Solution

The fourth proportional to 281,885.52, 422,890.48 and 82,221.53 is: 123,350.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,885.52 : 422,890.48 = 82,221.53 : x
  2. Step 2: Convert to fraction form
    281,885.52/422,890.48 = 82,221.53/x
  3. Step 3: Cross multiply
    281,885.52x = 422,890.48 × 82,221.53
  4. Step 4: Simplify right side
    281,885.52x = 34,770,702,934.15
  5. Step 5: Solve for x
    x = 34,770,702,934.15/281,885.52
  6. Step 6: Final answer
    x = 123,350.44

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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.