Finding the Fourth Proportional to 163.98, 245.84 and 161.96
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Solution
The fourth proportional to 163.98, 245.84 and 161.96 is: 242.80
Step by Step Solution
- Step 1: Write the proportion equation
163.98 : 245.84 = 161.96 : x - Step 2: Convert to fraction form
163.98/245.84 = 161.96/x - Step 3: Cross multiply
163.98x = 245.84 × 161.96 - Step 4: Simplify right side
163.98x = 39,814.21 - Step 5: Solve for x
x = 39,814.21/163.98 - Step 6: Final answer
x = 242.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.