Finding the Fourth Proportional to 163.02, 225.19 and 130.23
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Solution
The fourth proportional to 163.02, 225.19 and 130.23 is: 179.90
Step by Step Solution
- Step 1: Write the proportion equation
163.02 : 225.19 = 130.23 : x - Step 2: Convert to fraction form
163.02/225.19 = 130.23/x - Step 3: Cross multiply
163.02x = 225.19 × 130.23 - Step 4: Simplify right side
163.02x = 29,326.49 - Step 5: Solve for x
x = 29,326.49/163.02 - Step 6: Final answer
x = 179.90
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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.