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Finding the Fourth Proportional to 310,789.73, 428,883.49 and 181,804.57

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Solution

The fourth proportional to 310,789.73, 428,883.49 and 181,804.57 is: 250,886.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,789.73 : 428,883.49 = 181,804.57 : x
  2. Step 2: Convert to fraction form
    310,789.73/428,883.49 = 181,804.57/x
  3. Step 3: Cross multiply
    310,789.73x = 428,883.49 × 181,804.57
  4. Step 4: Simplify right side
    310,789.73x = 77,972,976,952.83
  5. Step 5: Solve for x
    x = 77,972,976,952.83/310,789.73
  6. Step 6: Final answer
    x = 250,886.60

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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.