Home / 255,917.78-383,712.24-106,261.40

Finding the Fourth Proportional to 255,917.78, 383,712.24 and 106,261.40

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Solution

The fourth proportional to 255,917.78, 383,712.24 and 106,261.40 is: 159,323.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,917.78 : 383,712.24 = 106,261.40 : x
  2. Step 2: Convert to fraction form
    255,917.78/383,712.24 = 106,261.40/x
  3. Step 3: Cross multiply
    255,917.78x = 383,712.24 × 106,261.40
  4. Step 4: Simplify right side
    255,917.78x = 40,773,799,819.54
  5. Step 5: Solve for x
    x = 40,773,799,819.54/255,917.78
  6. Step 6: Final answer
    x = 159,323.83

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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.