Finding the Fourth Proportional to 163.33, 225.40 and 96.99
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Solution
The fourth proportional to 163.33, 225.40 and 96.99 is: 133.85
Step by Step Solution
- Step 1: Write the proportion equation
163.33 : 225.40 = 96.99 : x - Step 2: Convert to fraction form
163.33/225.40 = 96.99/x - Step 3: Cross multiply
163.33x = 225.40 × 96.99 - Step 4: Simplify right side
163.33x = 21,861.06 - Step 5: Solve for x
x = 21,861.06/163.33 - Step 6: Final answer
x = 133.85
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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.