Home / 383,144.38-528,711.94-228,087.45

Finding the Fourth Proportional to 383,144.38, 528,711.94 and 228,087.45

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Solution

The fourth proportional to 383,144.38, 528,711.94 and 228,087.45 is: 314,744.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,144.38 : 528,711.94 = 228,087.45 : x
  2. Step 2: Convert to fraction form
    383,144.38/528,711.94 = 228,087.45/x
  3. Step 3: Cross multiply
    383,144.38x = 528,711.94 × 228,087.45
  4. Step 4: Simplify right side
    383,144.38x = 120,592,558,354.90
  5. Step 5: Solve for x
    x = 120,592,558,354.90/383,144.38
  6. Step 6: Final answer
    x = 314,744.42

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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.