Finding the Fourth Proportional to 163.11, 243.99 and 130.44
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Solution
The fourth proportional to 163.11, 243.99 and 130.44 is: 195.12
Step by Step Solution
- Step 1: Write the proportion equation
163.11 : 243.99 = 130.44 : x - Step 2: Convert to fraction form
163.11/243.99 = 130.44/x - Step 3: Cross multiply
163.11x = 243.99 × 130.44 - Step 4: Simplify right side
163.11x = 31,826.06 - Step 5: Solve for x
x = 31,826.06/163.11 - Step 6: Final answer
x = 195.12
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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.