Home / 320,796.38-442,693.64-177,553.36

Finding the Fourth Proportional to 320,796.38, 442,693.64 and 177,553.36

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Solution

The fourth proportional to 320,796.38, 442,693.64 and 177,553.36 is: 245,020.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,796.38 : 442,693.64 = 177,553.36 : x
  2. Step 2: Convert to fraction form
    320,796.38/442,693.64 = 177,553.36/x
  3. Step 3: Cross multiply
    320,796.38x = 442,693.64 × 177,553.36
  4. Step 4: Simplify right side
    320,796.38x = 78,601,740,131.40
  5. Step 5: Solve for x
    x = 78,601,740,131.40/320,796.38
  6. Step 6: Final answer
    x = 245,020.66

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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.