Home / 383,212.30-528,833.10-222,160.72

Finding the Fourth Proportional to 383,212.30, 528,833.10 and 222,160.72

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Solution

The fourth proportional to 383,212.30, 528,833.10 and 222,160.72 is: 306,581.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,212.30 : 528,833.10 = 222,160.72 : x
  2. Step 2: Convert to fraction form
    383,212.30/528,833.10 = 222,160.72/x
  3. Step 3: Cross multiply
    383,212.30x = 528,833.10 × 222,160.72
  4. Step 4: Simplify right side
    383,212.30x = 117,485,942,255.83
  5. Step 5: Solve for x
    x = 117,485,942,255.83/383,212.30
  6. Step 6: Final answer
    x = 306,581.87

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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.