Home / 380,049.08-570,240.50-143,336.43

Finding the Fourth Proportional to 380,049.08, 570,240.50 and 143,336.43

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Solution

The fourth proportional to 380,049.08, 570,240.50 and 143,336.43 is: 215,067.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,049.08 : 570,240.50 = 143,336.43 : x
  2. Step 2: Convert to fraction form
    380,049.08/570,240.50 = 143,336.43/x
  3. Step 3: Cross multiply
    380,049.08x = 570,240.50 × 143,336.43
  4. Step 4: Simplify right side
    380,049.08x = 81,736,236,794.73
  5. Step 5: Solve for x
    x = 81,736,236,794.73/380,049.08
  6. Step 6: Final answer
    x = 215,067.59

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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.