Finding the Fourth Proportional to 163.35, 225.27 and 112.99
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Solution
The fourth proportional to 163.35, 225.27 and 112.99 is: 155.82
Step by Step Solution
- Step 1: Write the proportion equation
163.35 : 225.27 = 112.99 : x - Step 2: Convert to fraction form
163.35/225.27 = 112.99/x - Step 3: Cross multiply
163.35x = 225.27 × 112.99 - Step 4: Simplify right side
163.35x = 25,453.26 - Step 5: Solve for x
x = 25,453.26/163.35 - Step 6: Final answer
x = 155.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.