Finding the Fourth Proportional to 338.44, 466.68 and 221.80
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Solution
The fourth proportional to 338.44, 466.68 and 221.80 is: 305.84
Step by Step Solution
- Step 1: Write the proportion equation
338.44 : 466.68 = 221.80 : x - Step 2: Convert to fraction form
338.44/466.68 = 221.80/x - Step 3: Cross multiply
338.44x = 466.68 × 221.80 - Step 4: Simplify right side
338.44x = 103,509.62 - Step 5: Solve for x
x = 103,509.62/338.44 - Step 6: Final answer
x = 305.84
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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.