Home / 383,213.30-528,834.48-222,161.72

Finding the Fourth Proportional to 383,213.30, 528,834.48 and 222,161.72

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Solution

The fourth proportional to 383,213.30, 528,834.48 and 222,161.72 is: 306,583.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,213.30 : 528,834.48 = 222,161.72 : x
  2. Step 2: Convert to fraction form
    383,213.30/528,834.48 = 222,161.72/x
  3. Step 3: Cross multiply
    383,213.30x = 528,834.48 × 222,161.72
  4. Step 4: Simplify right side
    383,213.30x = 117,486,777,672.11
  5. Step 5: Solve for x
    x = 117,486,777,672.11/383,213.30
  6. Step 6: Final answer
    x = 306,583.25

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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.