Home / 258,976.82-388,828.67-132,707.81

Finding the Fourth Proportional to 258,976.82, 388,828.67 and 132,707.81

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Solution

The fourth proportional to 258,976.82, 388,828.67 and 132,707.81 is: 199,247.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,976.82 : 388,828.67 = 132,707.81 : x
  2. Step 2: Convert to fraction form
    258,976.82/388,828.67 = 132,707.81/x
  3. Step 3: Cross multiply
    258,976.82x = 388,828.67 × 132,707.81
  4. Step 4: Simplify right side
    258,976.82x = 51,600,601,569.45
  5. Step 5: Solve for x
    x = 51,600,601,569.45/258,976.82
  6. Step 6: Final answer
    x = 199,247.95

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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.