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Finding the Fourth Proportional to 323.99, 485.61 and 246.70

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Solution

The fourth proportional to 323.99, 485.61 and 246.70 is: 369.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.99 : 485.61 = 246.70 : x
  2. Step 2: Convert to fraction form
    323.99/485.61 = 246.70/x
  3. Step 3: Cross multiply
    323.99x = 485.61 × 246.70
  4. Step 4: Simplify right side
    323.99x = 119,799.99
  5. Step 5: Solve for x
    x = 119,799.99/323.99
  6. Step 6: Final answer
    x = 369.76

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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.