Home / 286,112.24-394,832.04-158,784.56

Finding the Fourth Proportional to 286,112.24, 394,832.04 and 158,784.56

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Solution

The fourth proportional to 286,112.24, 394,832.04 and 158,784.56 is: 219,121.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,112.24 : 394,832.04 = 158,784.56 : x
  2. Step 2: Convert to fraction form
    286,112.24/394,832.04 = 158,784.56/x
  3. Step 3: Cross multiply
    286,112.24x = 394,832.04 × 158,784.56
  4. Step 4: Simplify right side
    286,112.24x = 62,693,231,745.30
  5. Step 5: Solve for x
    x = 62,693,231,745.30/286,112.24
  6. Step 6: Final answer
    x = 219,121.11

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1.5x scale

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.