Home / 257,924.27-386,709.93-131,319.52

Finding the Fourth Proportional to 257,924.27, 386,709.93 and 131,319.52

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Solution

The fourth proportional to 257,924.27, 386,709.93 and 131,319.52 is: 196,889.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,924.27 : 386,709.93 = 131,319.52 : x
  2. Step 2: Convert to fraction form
    257,924.27/386,709.93 = 131,319.52/x
  3. Step 3: Cross multiply
    257,924.27x = 386,709.93 × 131,319.52
  4. Step 4: Simplify right side
    257,924.27x = 50,782,561,420.06
  5. Step 5: Solve for x
    x = 50,782,561,420.06/257,924.27
  6. Step 6: Final answer
    x = 196,889.42

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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.