Finding the Fourth Proportional to 220.16, 330.84 and 148.46
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Solution
The fourth proportional to 220.16, 330.84 and 148.46 is: 223.09
Step by Step Solution
- Step 1: Write the proportion equation
220.16 : 330.84 = 148.46 : x - Step 2: Convert to fraction form
220.16/330.84 = 148.46/x - Step 3: Cross multiply
220.16x = 330.84 × 148.46 - Step 4: Simplify right side
220.16x = 49,116.51 - Step 5: Solve for x
x = 49,116.51/220.16 - Step 6: Final answer
x = 223.09
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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.