Home / 255,434.97-352,511.19-142,257.72

Finding the Fourth Proportional to 255,434.97, 352,511.19 and 142,257.72

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Solution

The fourth proportional to 255,434.97, 352,511.19 and 142,257.72 is: 196,321.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,434.97 : 352,511.19 = 142,257.72 : x
  2. Step 2: Convert to fraction form
    255,434.97/352,511.19 = 142,257.72/x
  3. Step 3: Cross multiply
    255,434.97x = 352,511.19 × 142,257.72
  4. Step 4: Simplify right side
    255,434.97x = 50,147,438,163.89
  5. Step 5: Solve for x
    x = 50,147,438,163.89/255,434.97
  6. Step 6: Final answer
    x = 196,321.74

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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.