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Finding the Fourth Proportional to 383,201.55, 528,818.25 and 222,149.94

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Solution

The fourth proportional to 383,201.55, 528,818.25 and 222,149.94 is: 306,566.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,201.55 : 528,818.25 = 222,149.94 : x
  2. Step 2: Convert to fraction form
    383,201.55/528,818.25 = 222,149.94/x
  3. Step 3: Cross multiply
    383,201.55x = 528,818.25 × 222,149.94
  4. Step 4: Simplify right side
    383,201.55x = 117,476,942,508.41
  5. Step 5: Solve for x
    x = 117,476,942,508.41/383,201.55
  6. Step 6: Final answer
    x = 306,566.98

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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.