Home / 255,918.80-384,070.20-131,195.60

Finding the Fourth Proportional to 255,918.80, 384,070.20 and 131,195.60

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Solution

The fourth proportional to 255,918.80, 384,070.20 and 131,195.60 is: 196,891.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,918.80 : 384,070.20 = 131,195.60 : x
  2. Step 2: Convert to fraction form
    255,918.80/384,070.20 = 131,195.60/x
  3. Step 3: Cross multiply
    255,918.80x = 384,070.20 × 131,195.60
  4. Step 4: Simplify right side
    255,918.80x = 50,388,320,331.12
  5. Step 5: Solve for x
    x = 50,388,320,331.12/255,918.80
  6. Step 6: Final answer
    x = 196,891.83

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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.