Home / 255,976.88-353,257.80-142,821.68

Finding the Fourth Proportional to 255,976.88, 353,257.80 and 142,821.68

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Solution

The fourth proportional to 255,976.88, 353,257.80 and 142,821.68 is: 197,099.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,976.88 : 353,257.80 = 142,821.68 : x
  2. Step 2: Convert to fraction form
    255,976.88/353,257.80 = 142,821.68/x
  3. Step 3: Cross multiply
    255,976.88x = 353,257.80 × 142,821.68
  4. Step 4: Simplify right side
    255,976.88x = 50,452,872,469.10
  5. Step 5: Solve for x
    x = 50,452,872,469.10/255,976.88
  6. Step 6: Final answer
    x = 197,099.33

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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.