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Finding the Fourth Proportional to 285,060.44, 428,022.40 and 226,371.90

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Solution

The fourth proportional to 285,060.44, 428,022.40 and 226,371.90 is: 339,900.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,060.44 : 428,022.40 = 226,371.90 : x
  2. Step 2: Convert to fraction form
    285,060.44/428,022.40 = 226,371.90/x
  3. Step 3: Cross multiply
    285,060.44x = 428,022.40 × 226,371.90
  4. Step 4: Simplify right side
    285,060.44x = 96,892,243,930.56
  5. Step 5: Solve for x
    x = 96,892,243,930.56/285,060.44
  6. Step 6: Final answer
    x = 339,900.70

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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.