Finding the Fourth Proportional to 161.14, 222.26 and 122.26
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Solution
The fourth proportional to 161.14, 222.26 and 122.26 is: 168.63
Step by Step Solution
- Step 1: Write the proportion equation
161.14 : 222.26 = 122.26 : x - Step 2: Convert to fraction form
161.14/222.26 = 122.26/x - Step 3: Cross multiply
161.14x = 222.26 × 122.26 - Step 4: Simplify right side
161.14x = 27,173.51 - Step 5: Solve for x
x = 27,173.51/161.14 - Step 6: Final answer
x = 168.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.