Finding the Fourth Proportional to 229.73, 345.11 and 198.99
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Solution
The fourth proportional to 229.73, 345.11 and 198.99 is: 298.93
Step by Step Solution
- Step 1: Write the proportion equation
229.73 : 345.11 = 198.99 : x - Step 2: Convert to fraction form
229.73/345.11 = 198.99/x - Step 3: Cross multiply
229.73x = 345.11 × 198.99 - Step 4: Simplify right side
229.73x = 68,673.44 - Step 5: Solve for x
x = 68,673.44/229.73 - Step 6: Final answer
x = 298.93
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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.