Home / 327,728.13-491,689.40-103,119.59

Finding the Fourth Proportional to 327,728.13, 491,689.40 and 103,119.59

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Solution

The fourth proportional to 327,728.13, 491,689.40 and 103,119.59 is: 154,709.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,728.13 : 491,689.40 = 103,119.59 : x
  2. Step 2: Convert to fraction form
    327,728.13/491,689.40 = 103,119.59/x
  3. Step 3: Cross multiply
    327,728.13x = 491,689.40 × 103,119.59
  4. Step 4: Simplify right side
    327,728.13x = 50,702,809,335.35
  5. Step 5: Solve for x
    x = 50,702,809,335.35/327,728.13
  6. Step 6: Final answer
    x = 154,709.97

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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.