Finding the Fourth Proportional to 163.11, 225.05 and 104.88
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Solution
The fourth proportional to 163.11, 225.05 and 104.88 is: 144.71
Step by Step Solution
- Step 1: Write the proportion equation
163.11 : 225.05 = 104.88 : x - Step 2: Convert to fraction form
163.11/225.05 = 104.88/x - Step 3: Cross multiply
163.11x = 225.05 × 104.88 - Step 4: Simplify right side
163.11x = 23,603.24 - Step 5: Solve for x
x = 23,603.24/163.11 - Step 6: Final answer
x = 144.71
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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.