Home / 383,143.67-528,738.07-222,092.05

Finding the Fourth Proportional to 383,143.67, 528,738.07 and 222,092.05

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Solution

The fourth proportional to 383,143.67, 528,738.07 and 222,092.05 is: 306,486.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,143.67 : 528,738.07 = 222,092.05 : x
  2. Step 2: Convert to fraction form
    383,143.67/528,738.07 = 222,092.05/x
  3. Step 3: Cross multiply
    383,143.67x = 528,738.07 × 222,092.05
  4. Step 4: Simplify right side
    383,143.67x = 117,428,521,879.34
  5. Step 5: Solve for x
    x = 117,428,521,879.34/383,143.67
  6. Step 6: Final answer
    x = 306,486.92

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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.