Home / 255,936.09-383,977.91-78,469.27

Finding the Fourth Proportional to 255,936.09, 383,977.91 and 78,469.27

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Solution

The fourth proportional to 255,936.09, 383,977.91 and 78,469.27 is: 117,726.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,936.09 : 383,977.91 = 78,469.27 : x
  2. Step 2: Convert to fraction form
    255,936.09/383,977.91 = 78,469.27/x
  3. Step 3: Cross multiply
    255,936.09x = 383,977.91 × 78,469.27
  4. Step 4: Simplify right side
    255,936.09x = 30,130,466,293.83
  5. Step 5: Solve for x
    x = 30,130,466,293.83/255,936.09
  6. Step 6: Final answer
    x = 117,726.52

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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.