Finding the Fourth Proportional to 221.62, 332.19 and 113.26
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Solution
The fourth proportional to 221.62, 332.19 and 113.26 is: 169.77
Step by Step Solution
- Step 1: Write the proportion equation
221.62 : 332.19 = 113.26 : x - Step 2: Convert to fraction form
221.62/332.19 = 113.26/x - Step 3: Cross multiply
221.62x = 332.19 × 113.26 - Step 4: Simplify right side
221.62x = 37,623.84 - Step 5: Solve for x
x = 37,623.84/221.62 - Step 6: Final answer
x = 169.77
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.