Home / 286,157.07-394,914.69-158,834.79

Finding the Fourth Proportional to 286,157.07, 394,914.69 and 158,834.79

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Solution

The fourth proportional to 286,157.07, 394,914.69 and 158,834.79 is: 219,201.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,157.07 : 394,914.69 = 158,834.79 : x
  2. Step 2: Convert to fraction form
    286,157.07/394,914.69 = 158,834.79/x
  3. Step 3: Cross multiply
    286,157.07x = 394,914.69 × 158,834.79
  4. Step 4: Simplify right side
    286,157.07x = 62,726,191,854.07
  5. Step 5: Solve for x
    x = 62,726,191,854.07/286,157.07
  6. Step 6: Final answer
    x = 219,201.96

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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.