Home / 255,640.49-383,419.20-120,704.29

Finding the Fourth Proportional to 255,640.49, 383,419.20 and 120,704.29

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Solution

The fourth proportional to 255,640.49, 383,419.20 and 120,704.29 is: 181,036.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,640.49 : 383,419.20 = 120,704.29 : x
  2. Step 2: Convert to fraction form
    255,640.49/383,419.20 = 120,704.29/x
  3. Step 3: Cross multiply
    255,640.49x = 383,419.20 × 120,704.29
  4. Step 4: Simplify right side
    255,640.49x = 46,280,342,335.00
  5. Step 5: Solve for x
    x = 46,280,342,335.00/255,640.49
  6. Step 6: Final answer
    x = 181,036.83

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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.