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Finding the Fourth Proportional to 255,321.52, 383,157.22 and 89,109.52

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Solution

The fourth proportional to 255,321.52, 383,157.22 and 89,109.52 is: 133,725.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,321.52 : 383,157.22 = 89,109.52 : x
  2. Step 2: Convert to fraction form
    255,321.52/383,157.22 = 89,109.52/x
  3. Step 3: Cross multiply
    255,321.52x = 383,157.22 × 89,109.52
  4. Step 4: Simplify right side
    255,321.52x = 34,142,955,958.73
  5. Step 5: Solve for x
    x = 34,142,955,958.73/255,321.52
  6. Step 6: Final answer
    x = 133,725.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.