Home / 327,446.31-491,169.48-90,789

Finding the Fourth Proportional to 327,446.31, 491,169.48 and 90,789

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Solution

The fourth proportional to 327,446.31, 491,169.48 and 90,789 is: 136,183.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,446.31 : 491,169.48 = 90,789 : x
  2. Step 2: Convert to fraction form
    327,446.31/491,169.48 = 90,789/x
  3. Step 3: Cross multiply
    327,446.31x = 491,169.48 × 90,789
  4. Step 4: Simplify right side
    327,446.31x = 44,592,785,919.72
  5. Step 5: Solve for x
    x = 44,592,785,919.72/327,446.31
  6. Step 6: Final answer
    x = 136,183.50

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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.