Home / 258,440.00-387,629.19-68,914.58

Finding the Fourth Proportional to 258,440.00, 387,629.19 and 68,914.58

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Solution

The fourth proportional to 258,440.00, 387,629.19 and 68,914.58 is: 103,363.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,440.00 : 387,629.19 = 68,914.58 : x
  2. Step 2: Convert to fraction form
    258,440.00/387,629.19 = 68,914.58/x
  3. Step 3: Cross multiply
    258,440.00x = 387,629.19 × 68,914.58
  4. Step 4: Simplify right side
    258,440.00x = 26,713,300,886.44
  5. Step 5: Solve for x
    x = 26,713,300,886.44/258,440.00
  6. Step 6: Final answer
    x = 103,363.65

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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.