Finding the Fourth Proportional to 163.18, 244.80 and 54.96
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Solution
The fourth proportional to 163.18, 244.80 and 54.96 is: 82.45
Step by Step Solution
- Step 1: Write the proportion equation
163.18 : 244.80 = 54.96 : x - Step 2: Convert to fraction form
163.18/244.80 = 54.96/x - Step 3: Cross multiply
163.18x = 244.80 × 54.96 - Step 4: Simplify right side
163.18x = 13,454.21 - Step 5: Solve for x
x = 13,454.21/163.18 - Step 6: Final answer
x = 82.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.