Finding the Fourth Proportional to 163.65, 244.99 and 112.21
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Solution
The fourth proportional to 163.65, 244.99 and 112.21 is: 167.98
Step by Step Solution
- Step 1: Write the proportion equation
163.65 : 244.99 = 112.21 : x - Step 2: Convert to fraction form
163.65/244.99 = 112.21/x - Step 3: Cross multiply
163.65x = 244.99 × 112.21 - Step 4: Simplify right side
163.65x = 27,490.33 - Step 5: Solve for x
x = 27,490.33/163.65 - Step 6: Final answer
x = 167.98
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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.