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Finding the Fourth Proportional to 275,246.73, 379,855.85 and 207,141.39

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Solution

The fourth proportional to 275,246.73, 379,855.85 and 207,141.39 is: 285,866.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,246.73 : 379,855.85 = 207,141.39 : x
  2. Step 2: Convert to fraction form
    275,246.73/379,855.85 = 207,141.39/x
  3. Step 3: Cross multiply
    275,246.73x = 379,855.85 × 207,141.39
  4. Step 4: Simplify right side
    275,246.73x = 78,683,867,732.92
  5. Step 5: Solve for x
    x = 78,683,867,732.92/275,246.73
  6. Step 6: Final answer
    x = 285,866.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.