Finding the Fourth Proportional to 229.23, 343.99 and 121.09
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Solution
The fourth proportional to 229.23, 343.99 and 121.09 is: 181.72
Step by Step Solution
- Step 1: Write the proportion equation
229.23 : 343.99 = 121.09 : x - Step 2: Convert to fraction form
229.23/343.99 = 121.09/x - Step 3: Cross multiply
229.23x = 343.99 × 121.09 - Step 4: Simplify right side
229.23x = 41,653.75 - Step 5: Solve for x
x = 41,653.75/229.23 - Step 6: Final answer
x = 181.72
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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.