Finding the Fourth Proportional to 163.22, 243.26 and 162.97
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Solution
The fourth proportional to 163.22, 243.26 and 162.97 is: 242.88
Step by Step Solution
- Step 1: Write the proportion equation
163.22 : 243.26 = 162.97 : x - Step 2: Convert to fraction form
163.22/243.26 = 162.97/x - Step 3: Cross multiply
163.22x = 243.26 × 162.97 - Step 4: Simplify right side
163.22x = 39,643.88 - Step 5: Solve for x
x = 39,643.88/163.22 - Step 6: Final answer
x = 242.88
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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.