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Finding the Fourth Proportional to 383,198.03, 528,813.42 and 222,146.44

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Solution

The fourth proportional to 383,198.03, 528,813.42 and 222,146.44 is: 306,562.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,198.03 : 528,813.42 = 222,146.44 : x
  2. Step 2: Convert to fraction form
    383,198.03/528,813.42 = 222,146.44/x
  3. Step 3: Cross multiply
    383,198.03x = 528,813.42 × 222,146.44
  4. Step 4: Simplify right side
    383,198.03x = 117,474,018,677.23
  5. Step 5: Solve for x
    x = 117,474,018,677.23/383,198.03
  6. Step 6: Final answer
    x = 306,562.17

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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.