Finding the Fourth Proportional to 163.18, 225.17 and 93.23
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Solution
The fourth proportional to 163.18, 225.17 and 93.23 is: 128.65
Step by Step Solution
- Step 1: Write the proportion equation
163.18 : 225.17 = 93.23 : x - Step 2: Convert to fraction form
163.18/225.17 = 93.23/x - Step 3: Cross multiply
163.18x = 225.17 × 93.23 - Step 4: Simplify right side
163.18x = 20,992.13 - Step 5: Solve for x
x = 20,992.13/163.18 - Step 6: Final answer
x = 128.65
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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.