Finding the Fourth Proportional to 163.26, 245.02 and 67.08
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Solution
The fourth proportional to 163.26, 245.02 and 67.08 is: 100.67
Step by Step Solution
- Step 1: Write the proportion equation
163.26 : 245.02 = 67.08 : x - Step 2: Convert to fraction form
163.26/245.02 = 67.08/x - Step 3: Cross multiply
163.26x = 245.02 × 67.08 - Step 4: Simplify right side
163.26x = 16,435.94 - Step 5: Solve for x
x = 16,435.94/163.26 - Step 6: Final answer
x = 100.67
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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.