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Finding the Fourth Proportional to 378,308.90, 568,106.12 and 252,755.95

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Solution

The fourth proportional to 378,308.90, 568,106.12 and 252,755.95 is: 379,563.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,308.90 : 568,106.12 = 252,755.95 : x
  2. Step 2: Convert to fraction form
    378,308.90/568,106.12 = 252,755.95/x
  3. Step 3: Cross multiply
    378,308.90x = 568,106.12 × 252,755.95
  4. Step 4: Simplify right side
    378,308.90x = 143,592,201,273.04
  5. Step 5: Solve for x
    x = 143,592,201,273.04/378,308.90
  6. Step 6: Final answer
    x = 379,563.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.