Finding the Fourth Proportional to 163.19, 244.79 and 109.19
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Solution
The fourth proportional to 163.19, 244.79 and 109.19 is: 163.79
Step by Step Solution
- Step 1: Write the proportion equation
163.19 : 244.79 = 109.19 : x - Step 2: Convert to fraction form
163.19/244.79 = 109.19/x - Step 3: Cross multiply
163.19x = 244.79 × 109.19 - Step 4: Simplify right side
163.19x = 26,728.62 - Step 5: Solve for x
x = 26,728.62/163.19 - Step 6: Final answer
x = 163.79
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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.