Home / 286,147.91-394,885.66-178,780.22

Finding the Fourth Proportional to 286,147.91, 394,885.66 and 178,780.22

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Solution

The fourth proportional to 286,147.91, 394,885.66 and 178,780.22 is: 246,717.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,147.91 : 394,885.66 = 178,780.22 : x
  2. Step 2: Convert to fraction form
    286,147.91/394,885.66 = 178,780.22/x
  3. Step 3: Cross multiply
    286,147.91x = 394,885.66 × 178,780.22
  4. Step 4: Simplify right side
    286,147.91x = 70,597,745,709.91
  5. Step 5: Solve for x
    x = 70,597,745,709.91/286,147.91
  6. Step 6: Final answer
    x = 246,717.67

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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.