Finding the Fourth Proportional to 229.19, 343.77 and 126.53
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Solution
The fourth proportional to 229.19, 343.77 and 126.53 is: 189.79
Step by Step Solution
- Step 1: Write the proportion equation
229.19 : 343.77 = 126.53 : x - Step 2: Convert to fraction form
229.19/343.77 = 126.53/x - Step 3: Cross multiply
229.19x = 343.77 × 126.53 - Step 4: Simplify right side
229.19x = 43,497.22 - Step 5: Solve for x
x = 43,497.22/229.19 - Step 6: Final answer
x = 189.79
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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.