Finding the Fourth Proportional to 163.12, 244.36 and 130.68
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Solution
The fourth proportional to 163.12, 244.36 and 130.68 is: 195.76
Step by Step Solution
- Step 1: Write the proportion equation
163.12 : 244.36 = 130.68 : x - Step 2: Convert to fraction form
163.12/244.36 = 130.68/x - Step 3: Cross multiply
163.12x = 244.36 × 130.68 - Step 4: Simplify right side
163.12x = 31,932.96 - Step 5: Solve for x
x = 31,932.96/163.12 - Step 6: Final answer
x = 195.76
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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.