Finding the Fourth Proportional to 163.95, 225.95 and 122.46
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Solution
The fourth proportional to 163.95, 225.95 and 122.46 is: 168.77
Step by Step Solution
- Step 1: Write the proportion equation
163.95 : 225.95 = 122.46 : x - Step 2: Convert to fraction form
163.95/225.95 = 122.46/x - Step 3: Cross multiply
163.95x = 225.95 × 122.46 - Step 4: Simplify right side
163.95x = 27,669.22 - Step 5: Solve for x
x = 27,669.22/163.95 - Step 6: Final answer
x = 168.77
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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.