Finding the Fourth Proportional to 163.19, 246.56 and 161.75
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Solution
The fourth proportional to 163.19, 246.56 and 161.75 is: 244.38
Step by Step Solution
- Step 1: Write the proportion equation
163.19 : 246.56 = 161.75 : x - Step 2: Convert to fraction form
163.19/246.56 = 161.75/x - Step 3: Cross multiply
163.19x = 246.56 × 161.75 - Step 4: Simplify right side
163.19x = 39,881.08 - Step 5: Solve for x
x = 39,881.08/163.19 - Step 6: Final answer
x = 244.38
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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.