Finding the Fourth Proportional to 163.18, 225.24 and 116.48
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Solution
The fourth proportional to 163.18, 225.24 and 116.48 is: 160.77
Step by Step Solution
- Step 1: Write the proportion equation
163.18 : 225.24 = 116.48 : x - Step 2: Convert to fraction form
163.18/225.24 = 116.48/x - Step 3: Cross multiply
163.18x = 225.24 × 116.48 - Step 4: Simplify right side
163.18x = 26,235.24 - Step 5: Solve for x
x = 26,235.24/163.18 - Step 6: Final answer
x = 160.77
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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.