Home / 258,725.75-356,999.19-149,791.28

Finding the Fourth Proportional to 258,725.75, 356,999.19 and 149,791.28

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Solution

The fourth proportional to 258,725.75, 356,999.19 and 149,791.28 is: 206,687.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,725.75 : 356,999.19 = 149,791.28 : x
  2. Step 2: Convert to fraction form
    258,725.75/356,999.19 = 149,791.28/x
  3. Step 3: Cross multiply
    258,725.75x = 356,999.19 × 149,791.28
  4. Step 4: Simplify right side
    258,725.75x = 53,475,363,844.07
  5. Step 5: Solve for x
    x = 53,475,363,844.07/258,725.75
  6. Step 6: Final answer
    x = 206,687.45

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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.