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Finding the Fourth Proportional to 255,704.92, 383,596.79 and 87,185.83

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Solution

The fourth proportional to 255,704.92, 383,596.79 and 87,185.83 is: 130,792.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,704.92 : 383,596.79 = 87,185.83 : x
  2. Step 2: Convert to fraction form
    255,704.92/383,596.79 = 87,185.83/x
  3. Step 3: Cross multiply
    255,704.92x = 383,596.79 × 87,185.83
  4. Step 4: Simplify right side
    255,704.92x = 33,444,204,521.49
  5. Step 5: Solve for x
    x = 33,444,204,521.49/255,704.92
  6. Step 6: Final answer
    x = 130,792.18

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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.