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Finding the Fourth Proportional to 290,698.52, 401,273.57 and 169,879.07

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Solution

The fourth proportional to 290,698.52, 401,273.57 and 169,879.07 is: 234,497.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,698.52 : 401,273.57 = 169,879.07 : x
  2. Step 2: Convert to fraction form
    290,698.52/401,273.57 = 169,879.07/x
  3. Step 3: Cross multiply
    290,698.52x = 401,273.57 × 169,879.07
  4. Step 4: Simplify right side
    290,698.52x = 68,167,981,040.97
  5. Step 5: Solve for x
    x = 68,167,981,040.97/290,698.52
  6. Step 6: Final answer
    x = 234,497.17

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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.