Finding the Fourth Proportional to 229.26, 343.89 and 84.99
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Solution
The fourth proportional to 229.26, 343.89 and 84.99 is: 127.49
Step by Step Solution
- Step 1: Write the proportion equation
229.26 : 343.89 = 84.99 : x - Step 2: Convert to fraction form
229.26/343.89 = 84.99/x - Step 3: Cross multiply
229.26x = 343.89 × 84.99 - Step 4: Simplify right side
229.26x = 29,227.21 - Step 5: Solve for x
x = 29,227.21/229.26 - Step 6: Final answer
x = 127.49
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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.