Finding the Fourth Proportional to 163.40, 246.30 and 160.97
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Solution
The fourth proportional to 163.40, 246.30 and 160.97 is: 242.64
Step by Step Solution
- Step 1: Write the proportion equation
163.40 : 246.30 = 160.97 : x - Step 2: Convert to fraction form
163.40/246.30 = 160.97/x - Step 3: Cross multiply
163.40x = 246.30 × 160.97 - Step 4: Simplify right side
163.40x = 39,645.68 - Step 5: Solve for x
x = 39,645.68/163.40 - Step 6: Final answer
x = 242.64
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.