Finding the Fourth Proportional to 163.24, 244.79 and 47.68
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Solution
The fourth proportional to 163.24, 244.79 and 47.68 is: 71.50
Step by Step Solution
- Step 1: Write the proportion equation
163.24 : 244.79 = 47.68 : x - Step 2: Convert to fraction form
163.24/244.79 = 47.68/x - Step 3: Cross multiply
163.24x = 244.79 × 47.68 - Step 4: Simplify right side
163.24x = 11,672.56 - Step 5: Solve for x
x = 11,672.56/163.24 - Step 6: Final answer
x = 71.50
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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.