Finding the Fourth Proportional to 163.85, 226.08 and 101.70
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Solution
The fourth proportional to 163.85, 226.08 and 101.70 is: 140.33
Step by Step Solution
- Step 1: Write the proportion equation
163.85 : 226.08 = 101.70 : x - Step 2: Convert to fraction form
163.85/226.08 = 101.70/x - Step 3: Cross multiply
163.85x = 226.08 × 101.70 - Step 4: Simplify right side
163.85x = 22,992.34 - Step 5: Solve for x
x = 22,992.34/163.85 - Step 6: Final answer
x = 140.33
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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.