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Finding the Fourth Proportional to 221,046.80, 331,570.12 and 54,834.80

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Solution

The fourth proportional to 221,046.80, 331,570.12 and 54,834.80 is: 82,252.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,046.80 : 331,570.12 = 54,834.80 : x
  2. Step 2: Convert to fraction form
    221,046.80/331,570.12 = 54,834.80/x
  3. Step 3: Cross multiply
    221,046.80x = 331,570.12 × 54,834.80
  4. Step 4: Simplify right side
    221,046.80x = 18,181,581,216.18
  5. Step 5: Solve for x
    x = 18,181,581,216.18/221,046.80
  6. Step 6: Final answer
    x = 82,252.18

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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.