Home / 383,936.90-529,857.72-220,645.94

Finding the Fourth Proportional to 383,936.90, 529,857.72 and 220,645.94

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Solution

The fourth proportional to 383,936.90, 529,857.72 and 220,645.94 is: 304,505.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,936.90 : 529,857.72 = 220,645.94 : x
  2. Step 2: Convert to fraction form
    383,936.90/529,857.72 = 220,645.94/x
  3. Step 3: Cross multiply
    383,936.90x = 529,857.72 × 220,645.94
  4. Step 4: Simplify right side
    383,936.90x = 116,910,952,046.37
  5. Step 5: Solve for x
    x = 116,910,952,046.37/383,936.90
  6. Step 6: Final answer
    x = 304,505.65

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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.