Finding the Fourth Proportional to 163.11, 243.64 and 119.41
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Solution
The fourth proportional to 163.11, 243.64 and 119.41 is: 178.36
Step by Step Solution
- Step 1: Write the proportion equation
163.11 : 243.64 = 119.41 : x - Step 2: Convert to fraction form
163.11/243.64 = 119.41/x - Step 3: Cross multiply
163.11x = 243.64 × 119.41 - Step 4: Simplify right side
163.11x = 29,091.24 - Step 5: Solve for x
x = 29,091.24/163.11 - Step 6: Final answer
x = 178.36
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.