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Finding the Fourth Proportional to 383,850.40, 529,542.24 and 222,612

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Solution

The fourth proportional to 383,850.40, 529,542.24 and 222,612 is: 307,105.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,850.40 : 529,542.24 = 222,612 : x
  2. Step 2: Convert to fraction form
    383,850.40/529,542.24 = 222,612/x
  3. Step 3: Cross multiply
    383,850.40x = 529,542.24 × 222,612
  4. Step 4: Simplify right side
    383,850.40x = 117,882,457,130.88
  5. Step 5: Solve for x
    x = 117,882,457,130.88/383,850.40
  6. Step 6: Final answer
    x = 307,105.21

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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.