Home / 286,039.35-394,734.30-158,735.43

Finding the Fourth Proportional to 286,039.35, 394,734.30 and 158,735.43

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Solution

The fourth proportional to 286,039.35, 394,734.30 and 158,735.43 is: 219,054.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,039.35 : 394,734.30 = 158,735.43 : x
  2. Step 2: Convert to fraction form
    286,039.35/394,734.30 = 158,735.43/x
  3. Step 3: Cross multiply
    286,039.35x = 394,734.30 × 158,735.43
  4. Step 4: Simplify right side
    286,039.35x = 62,658,316,078.90
  5. Step 5: Solve for x
    x = 62,658,316,078.90/286,039.35
  6. Step 6: Final answer
    x = 219,054.89

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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.