Finding the Fourth Proportional to 163.99, 226.26 and 122.56
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Solution
The fourth proportional to 163.99, 226.26 and 122.56 is: 169.10
Step by Step Solution
- Step 1: Write the proportion equation
163.99 : 226.26 = 122.56 : x - Step 2: Convert to fraction form
163.99/226.26 = 122.56/x - Step 3: Cross multiply
163.99x = 226.26 × 122.56 - Step 4: Simplify right side
163.99x = 27,729.29 - Step 5: Solve for x
x = 27,729.29/163.99 - Step 6: Final answer
x = 169.10
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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.