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Finding the Fourth Proportional to 285,079.44, 427,610.34 and 135,427.44

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Solution

The fourth proportional to 285,079.44, 427,610.34 and 135,427.44 is: 203,136.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,079.44 : 427,610.34 = 135,427.44 : x
  2. Step 2: Convert to fraction form
    285,079.44/427,610.34 = 135,427.44/x
  3. Step 3: Cross multiply
    285,079.44x = 427,610.34 × 135,427.44
  4. Step 4: Simplify right side
    285,079.44x = 57,910,173,663.73
  5. Step 5: Solve for x
    x = 57,910,173,663.73/285,079.44
  6. Step 6: Final answer
    x = 203,136.97

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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.