Finding the Fourth Proportional to 163.75, 245.84 and 161.02
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Solution
The fourth proportional to 163.75, 245.84 and 161.02 is: 241.74
Step by Step Solution
- Step 1: Write the proportion equation
163.75 : 245.84 = 161.02 : x - Step 2: Convert to fraction form
163.75/245.84 = 161.02/x - Step 3: Cross multiply
163.75x = 245.84 × 161.02 - Step 4: Simplify right side
163.75x = 39,585.16 - Step 5: Solve for x
x = 39,585.16/163.75 - Step 6: Final answer
x = 241.74
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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.