Home / 258,977.34-387,949.33-205,759.43

Finding the Fourth Proportional to 258,977.34, 387,949.33 and 205,759.43

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Solution

The fourth proportional to 258,977.34, 387,949.33 and 205,759.43 is: 308,228.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,977.34 : 387,949.33 = 205,759.43 : x
  2. Step 2: Convert to fraction form
    258,977.34/387,949.33 = 205,759.43/x
  3. Step 3: Cross multiply
    258,977.34x = 387,949.33 × 205,759.43
  4. Step 4: Simplify right side
    258,977.34x = 79,824,233,009.68
  5. Step 5: Solve for x
    x = 79,824,233,009.68/258,977.34
  6. Step 6: Final answer
    x = 308,228.64

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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.