Finding the Fourth Proportional to 217.77, 326.44 and 114.99
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Solution
The fourth proportional to 217.77, 326.44 and 114.99 is: 172.37
Step by Step Solution
- Step 1: Write the proportion equation
217.77 : 326.44 = 114.99 : x - Step 2: Convert to fraction form
217.77/326.44 = 114.99/x - Step 3: Cross multiply
217.77x = 326.44 × 114.99 - Step 4: Simplify right side
217.77x = 37,537.34 - Step 5: Solve for x
x = 37,537.34/217.77 - Step 6: Final answer
x = 172.37
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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.