Home / 255,447.44-383,170.92-120,480.02

Finding the Fourth Proportional to 255,447.44, 383,170.92 and 120,480.02

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Solution

The fourth proportional to 255,447.44, 383,170.92 and 120,480.02 is: 180,719.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,447.44 : 383,170.92 = 120,480.02 : x
  2. Step 2: Convert to fraction form
    255,447.44/383,170.92 = 120,480.02/x
  3. Step 3: Cross multiply
    255,447.44x = 383,170.92 × 120,480.02
  4. Step 4: Simplify right side
    255,447.44x = 46,164,440,105.02
  5. Step 5: Solve for x
    x = 46,164,440,105.02/255,447.44
  6. Step 6: Final answer
    x = 180,719.92

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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.