Home / 327,845.43-491,796-91,188.12

Finding the Fourth Proportional to 327,845.43, 491,796 and 91,188.12

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Solution

The fourth proportional to 327,845.43, 491,796 and 91,188.12 is: 136,789.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,845.43 : 491,796 = 91,188.12 : x
  2. Step 2: Convert to fraction form
    327,845.43/491,796 = 91,188.12/x
  3. Step 3: Cross multiply
    327,845.43x = 491,796 × 91,188.12
  4. Step 4: Simplify right side
    327,845.43x = 44,845,952,663.52
  5. Step 5: Solve for x
    x = 44,845,952,663.52/327,845.43
  6. Step 6: Final answer
    x = 136,789.93

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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.