Home / 255,948.80-384,115.20-131,225.60

Finding the Fourth Proportional to 255,948.80, 384,115.20 and 131,225.60

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Solution

The fourth proportional to 255,948.80, 384,115.20 and 131,225.60 is: 196,936.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,948.80 : 384,115.20 = 131,225.60 : x
  2. Step 2: Convert to fraction form
    255,948.80/384,115.20 = 131,225.60/x
  3. Step 3: Cross multiply
    255,948.80x = 384,115.20 × 131,225.60
  4. Step 4: Simplify right side
    255,948.80x = 50,405,747,589.12
  5. Step 5: Solve for x
    x = 50,405,747,589.12/255,948.80
  6. Step 6: Final answer
    x = 196,936.84

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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.