Home / 857,171.52-1,285,843.68-226,128.96

Finding the Fourth Proportional to 857,171.52, 1,285,843.68 and 226,128.96

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Solution

The fourth proportional to 857,171.52, 1,285,843.68 and 226,128.96 is: 339,216.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,171.52 : 1,285,843.68 = 226,128.96 : x
  2. Step 2: Convert to fraction form
    857,171.52/1,285,843.68 = 226,128.96/x
  3. Step 3: Cross multiply
    857,171.52x = 1,285,843.68 × 226,128.96
  4. Step 4: Simplify right side
    857,171.52x = 290,766,494,080.97
  5. Step 5: Solve for x
    x = 290,766,494,080.97/857,171.52
  6. Step 6: Final answer
    x = 339,216.23

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1.5x scale

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.