Finding the Fourth Proportional to 163.08, 224.60 and 149.42
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Solution
The fourth proportional to 163.08, 224.60 and 149.42 is: 205.79
Step by Step Solution
- Step 1: Write the proportion equation
163.08 : 224.60 = 149.42 : x - Step 2: Convert to fraction form
163.08/224.60 = 149.42/x - Step 3: Cross multiply
163.08x = 224.60 × 149.42 - Step 4: Simplify right side
163.08x = 33,559.73 - Step 5: Solve for x
x = 33,559.73/163.08 - Step 6: Final answer
x = 205.79
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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.