Finding the Fourth Proportional to 163.80, 229.80 and 163.80
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Solution
The fourth proportional to 163.80, 229.80 and 163.80 is: 229.80
Step by Step Solution
- Step 1: Write the proportion equation
163.80 : 229.80 = 163.80 : x - Step 2: Convert to fraction form
163.80/229.80 = 163.80/x - Step 3: Cross multiply
163.80x = 229.80 × 163.80 - Step 4: Simplify right side
163.80x = 37,641.24 - Step 5: Solve for x
x = 37,641.24/163.80 - Step 6: Final answer
x = 229.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.