Home / 255,485.42-383,273.16-105,641.75

Finding the Fourth Proportional to 255,485.42, 383,273.16 and 105,641.75

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Solution

The fourth proportional to 255,485.42, 383,273.16 and 105,641.75 is: 158,481.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,485.42 : 383,273.16 = 105,641.75 : x
  2. Step 2: Convert to fraction form
    255,485.42/383,273.16 = 105,641.75/x
  3. Step 3: Cross multiply
    255,485.42x = 383,273.16 × 105,641.75
  4. Step 4: Simplify right side
    255,485.42x = 40,489,647,350.43
  5. Step 5: Solve for x
    x = 40,489,647,350.43/255,485.42
  6. Step 6: Final answer
    x = 158,481.24

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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.