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Finding the Fourth Proportional to 823.23, 1,234.85 and 246.11

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Solution

The fourth proportional to 823.23, 1,234.85 and 246.11 is: 369.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    823.23 : 1,234.85 = 246.11 : x
  2. Step 2: Convert to fraction form
    823.23/1,234.85 = 246.11/x
  3. Step 3: Cross multiply
    823.23x = 1,234.85 × 246.11
  4. Step 4: Simplify right side
    823.23x = 303,901.53
  5. Step 5: Solve for x
    x = 303,901.53/823.23
  6. Step 6: Final answer
    x = 369.16

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.