Finding the Fourth Proportional to 163.13, 225.11 and 104.94
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Solution
The fourth proportional to 163.13, 225.11 and 104.94 is: 144.82
Step by Step Solution
- Step 1: Write the proportion equation
163.13 : 225.11 = 104.94 : x - Step 2: Convert to fraction form
163.13/225.11 = 104.94/x - Step 3: Cross multiply
163.13x = 225.11 × 104.94 - Step 4: Simplify right side
163.13x = 23,623.31 - Step 5: Solve for x
x = 23,623.31/163.13 - Step 6: Final answer
x = 144.82
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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.