Home / 258,976.34-387,947.83-205,758.43

Finding the Fourth Proportional to 258,976.34, 387,947.83 and 205,758.43

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Solution

The fourth proportional to 258,976.34, 387,947.83 and 205,758.43 is: 308,227.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,976.34 : 387,947.83 = 205,758.43 : x
  2. Step 2: Convert to fraction form
    258,976.34/387,947.83 = 205,758.43/x
  3. Step 3: Cross multiply
    258,976.34x = 387,947.83 × 205,758.43
  4. Step 4: Simplify right side
    258,976.34x = 79,823,535,324.24
  5. Step 5: Solve for x
    x = 79,823,535,324.24/258,976.34
  6. Step 6: Final answer
    x = 308,227.14

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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.