Home / 255,664.82-383,497.23-78,171.83

Finding the Fourth Proportional to 255,664.82, 383,497.23 and 78,171.83

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Solution

The fourth proportional to 255,664.82, 383,497.23 and 78,171.83 is: 117,257.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,664.82 : 383,497.23 = 78,171.83 : x
  2. Step 2: Convert to fraction form
    255,664.82/383,497.23 = 78,171.83/x
  3. Step 3: Cross multiply
    255,664.82x = 383,497.23 × 78,171.83
  4. Step 4: Simplify right side
    255,664.82x = 29,978,680,269.03
  5. Step 5: Solve for x
    x = 29,978,680,269.03/255,664.82
  6. Step 6: Final answer
    x = 117,257.75

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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.