Finding the Fourth Proportional to 163.21, 244.49 and 98.26
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Solution
The fourth proportional to 163.21, 244.49 and 98.26 is: 147.19
Step by Step Solution
- Step 1: Write the proportion equation
163.21 : 244.49 = 98.26 : x - Step 2: Convert to fraction form
163.21/244.49 = 98.26/x - Step 3: Cross multiply
163.21x = 244.49 × 98.26 - Step 4: Simplify right side
163.21x = 24,023.59 - Step 5: Solve for x
x = 24,023.59/163.21 - Step 6: Final answer
x = 147.19
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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.