Home / 255,434.91-352,511.11-142,257.66

Finding the Fourth Proportional to 255,434.91, 352,511.11 and 142,257.66

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Solution

The fourth proportional to 255,434.91, 352,511.11 and 142,257.66 is: 196,321.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,434.91 : 352,511.11 = 142,257.66 : x
  2. Step 2: Convert to fraction form
    255,434.91/352,511.11 = 142,257.66/x
  3. Step 3: Cross multiply
    255,434.91x = 352,511.11 × 142,257.66
  4. Step 4: Simplify right side
    255,434.91x = 50,147,405,632.60
  5. Step 5: Solve for x
    x = 50,147,405,632.60/255,434.91
  6. Step 6: Final answer
    x = 196,321.66

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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.