Home / 286,022.54-394,722.52-156,965.55

Finding the Fourth Proportional to 286,022.54, 394,722.52 and 156,965.55

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Solution

The fourth proportional to 286,022.54, 394,722.52 and 156,965.55 is: 216,618.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,022.54 : 394,722.52 = 156,965.55 : x
  2. Step 2: Convert to fraction form
    286,022.54/394,722.52 = 156,965.55/x
  3. Step 3: Cross multiply
    286,022.54x = 394,722.52 × 156,965.55
  4. Step 4: Simplify right side
    286,022.54x = 61,957,835,576.56
  5. Step 5: Solve for x
    x = 61,957,835,576.56/286,022.54
  6. Step 6: Final answer
    x = 216,618.71

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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.