Home / 327,856.47-491,741.63-103,218.08

Finding the Fourth Proportional to 327,856.47, 491,741.63 and 103,218.08

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Solution

The fourth proportional to 327,856.47, 491,741.63 and 103,218.08 is: 154,813.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,856.47 : 491,741.63 = 103,218.08 : x
  2. Step 2: Convert to fraction form
    327,856.47/491,741.63 = 103,218.08/x
  3. Step 3: Cross multiply
    327,856.47x = 491,741.63 × 103,218.08
  4. Step 4: Simplify right side
    327,856.47x = 50,756,624,316.94
  5. Step 5: Solve for x
    x = 50,756,624,316.94/327,856.47
  6. Step 6: Final answer
    x = 154,813.55

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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.