Home / 257,926.42-386,713.09-131,321.67

Finding the Fourth Proportional to 257,926.42, 386,713.09 and 131,321.67

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Solution

The fourth proportional to 257,926.42, 386,713.09 and 131,321.67 is: 196,892.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,926.42 : 386,713.09 = 131,321.67 : x
  2. Step 2: Convert to fraction form
    257,926.42/386,713.09 = 131,321.67/x
  3. Step 3: Cross multiply
    257,926.42x = 386,713.09 × 131,321.67
  4. Step 4: Simplify right side
    257,926.42x = 50,783,808,789.66
  5. Step 5: Solve for x
    x = 50,783,808,789.66/257,926.42
  6. Step 6: Final answer
    x = 196,892.62

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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.