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Finding the Fourth Proportional to 378,608.31, 567,917.41 and 125,888.80

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Solution

The fourth proportional to 378,608.31, 567,917.41 and 125,888.80 is: 188,834.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,608.31 : 567,917.41 = 125,888.80 : x
  2. Step 2: Convert to fraction form
    378,608.31/567,917.41 = 125,888.80/x
  3. Step 3: Cross multiply
    378,608.31x = 567,917.41 × 125,888.80
  4. Step 4: Simplify right side
    378,608.31x = 71,494,440,810.38
  5. Step 5: Solve for x
    x = 71,494,440,810.38/378,608.31
  6. Step 6: Final answer
    x = 188,834.84

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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.