Finding the Fourth Proportional to 163.91, 226.11 and 141.87
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Solution
The fourth proportional to 163.91, 226.11 and 141.87 is: 195.71
Step by Step Solution
- Step 1: Write the proportion equation
163.91 : 226.11 = 141.87 : x - Step 2: Convert to fraction form
163.91/226.11 = 141.87/x - Step 3: Cross multiply
163.91x = 226.11 × 141.87 - Step 4: Simplify right side
163.91x = 32,078.23 - Step 5: Solve for x
x = 32,078.23/163.91 - Step 6: Final answer
x = 195.71
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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.