Home / 327,555.28-491,338.98-102,911.50

Finding the Fourth Proportional to 327,555.28, 491,338.98 and 102,911.50

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Solution

The fourth proportional to 327,555.28, 491,338.98 and 102,911.50 is: 154,369.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,555.28 : 491,338.98 = 102,911.50 : x
  2. Step 2: Convert to fraction form
    327,555.28/491,338.98 = 102,911.50/x
  3. Step 3: Cross multiply
    327,555.28x = 491,338.98 × 102,911.50
  4. Step 4: Simplify right side
    327,555.28x = 50,564,431,440.27
  5. Step 5: Solve for x
    x = 50,564,431,440.27/327,555.28
  6. Step 6: Final answer
    x = 154,369.15

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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.