Home / 286,177.12-394,942.32-158,854.84

Finding the Fourth Proportional to 286,177.12, 394,942.32 and 158,854.84

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Solution

The fourth proportional to 286,177.12, 394,942.32 and 158,854.84 is: 219,229.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,177.12 : 394,942.32 = 158,854.84 : x
  2. Step 2: Convert to fraction form
    286,177.12/394,942.32 = 158,854.84/x
  3. Step 3: Cross multiply
    286,177.12x = 394,942.32 × 158,854.84
  4. Step 4: Simplify right side
    286,177.12x = 62,738,499,052.83
  5. Step 5: Solve for x
    x = 62,738,499,052.83/286,177.12
  6. Step 6: Final answer
    x = 219,229.61

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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.