Finding the Fourth Proportional to 161.44, 222.75 and 108.99
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Solution
The fourth proportional to 161.44, 222.75 and 108.99 is: 150.38
Step by Step Solution
- Step 1: Write the proportion equation
161.44 : 222.75 = 108.99 : x - Step 2: Convert to fraction form
161.44/222.75 = 108.99/x - Step 3: Cross multiply
161.44x = 222.75 × 108.99 - Step 4: Simplify right side
161.44x = 24,277.52 - Step 5: Solve for x
x = 24,277.52/161.44 - Step 6: Final answer
x = 150.38
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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.