Finding the Fourth Proportional to 220.63, 332.20 and 166.99
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Solution
The fourth proportional to 220.63, 332.20 and 166.99 is: 251.43
Step by Step Solution
- Step 1: Write the proportion equation
220.63 : 332.20 = 166.99 : x - Step 2: Convert to fraction form
220.63/332.20 = 166.99/x - Step 3: Cross multiply
220.63x = 332.20 × 166.99 - Step 4: Simplify right side
220.63x = 55,474.08 - Step 5: Solve for x
x = 55,474.08/220.63 - Step 6: Final answer
x = 251.43
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.