Finding the Fourth Proportional to 163.15, 225.19 and 146.75
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Solution
The fourth proportional to 163.15, 225.19 and 146.75 is: 202.55
Step by Step Solution
- Step 1: Write the proportion equation
163.15 : 225.19 = 146.75 : x - Step 2: Convert to fraction form
163.15/225.19 = 146.75/x - Step 3: Cross multiply
163.15x = 225.19 × 146.75 - Step 4: Simplify right side
163.15x = 33,046.63 - Step 5: Solve for x
x = 33,046.63/163.15 - Step 6: Final answer
x = 202.55
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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.