Finding the Fourth Proportional to 163.87, 225.58 and 122.29
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Solution
The fourth proportional to 163.87, 225.58 and 122.29 is: 168.34
Step by Step Solution
- Step 1: Write the proportion equation
163.87 : 225.58 = 122.29 : x - Step 2: Convert to fraction form
163.87/225.58 = 122.29/x - Step 3: Cross multiply
163.87x = 225.58 × 122.29 - Step 4: Simplify right side
163.87x = 27,586.18 - Step 5: Solve for x
x = 27,586.18/163.87 - Step 6: Final answer
x = 168.34
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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.