Finding the Fourth Proportional to 163.14, 225.35 and 119.70
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Solution
The fourth proportional to 163.14, 225.35 and 119.70 is: 165.35
Step by Step Solution
- Step 1: Write the proportion equation
163.14 : 225.35 = 119.70 : x - Step 2: Convert to fraction form
163.14/225.35 = 119.70/x - Step 3: Cross multiply
163.14x = 225.35 × 119.70 - Step 4: Simplify right side
163.14x = 26,974.40 - Step 5: Solve for x
x = 26,974.40/163.14 - Step 6: Final answer
x = 165.35
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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.