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Finding the Fourth Proportional to 378,807.98, 567,812.54 and 126,020.96

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Solution

The fourth proportional to 378,807.98, 567,812.54 and 126,020.96 is: 188,898.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,807.98 : 567,812.54 = 126,020.96 : x
  2. Step 2: Convert to fraction form
    378,807.98/567,812.54 = 126,020.96/x
  3. Step 3: Cross multiply
    378,807.98x = 567,812.54 × 126,020.96
  4. Step 4: Simplify right side
    378,807.98x = 71,556,278,866.83
  5. Step 5: Solve for x
    x = 71,556,278,866.83/378,807.98
  6. Step 6: Final answer
    x = 188,898.55

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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.