Finding the Fourth Proportional to 163.26, 225.36 and 97.80
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Solution
The fourth proportional to 163.26, 225.36 and 97.80 is: 135.00
Step by Step Solution
- Step 1: Write the proportion equation
163.26 : 225.36 = 97.80 : x - Step 2: Convert to fraction form
163.26/225.36 = 97.80/x - Step 3: Cross multiply
163.26x = 225.36 × 97.80 - Step 4: Simplify right side
163.26x = 22,040.21 - Step 5: Solve for x
x = 22,040.21/163.26 - Step 6: Final answer
x = 135.00
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.