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Finding the Fourth Proportional to 285,701.68, 428,548.17 and 69,562.44

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Solution

The fourth proportional to 285,701.68, 428,548.17 and 69,562.44 is: 104,342.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,701.68 : 428,548.17 = 69,562.44 : x
  2. Step 2: Convert to fraction form
    285,701.68/428,548.17 = 69,562.44/x
  3. Step 3: Cross multiply
    285,701.68x = 428,548.17 × 69,562.44
  4. Step 4: Simplify right side
    285,701.68x = 29,810,856,362.73
  5. Step 5: Solve for x
    x = 29,810,856,362.73/285,701.68
  6. Step 6: Final answer
    x = 104,342.60

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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.