Finding the Fourth Proportional to 163.36, 225.30 and 110.80
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Solution
The fourth proportional to 163.36, 225.30 and 110.80 is: 152.81
Step by Step Solution
- Step 1: Write the proportion equation
163.36 : 225.30 = 110.80 : x - Step 2: Convert to fraction form
163.36/225.30 = 110.80/x - Step 3: Cross multiply
163.36x = 225.30 × 110.80 - Step 4: Simplify right side
163.36x = 24,963.24 - Step 5: Solve for x
x = 24,963.24/163.36 - Step 6: Final answer
x = 152.81
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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.