Finding the Fourth Proportional to 328.44, 453.42 and 223.68
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Solution
The fourth proportional to 328.44, 453.42 and 223.68 is: 308.80
Step by Step Solution
- Step 1: Write the proportion equation
328.44 : 453.42 = 223.68 : x - Step 2: Convert to fraction form
328.44/453.42 = 223.68/x - Step 3: Cross multiply
328.44x = 453.42 × 223.68 - Step 4: Simplify right side
328.44x = 101,420.99 - Step 5: Solve for x
x = 101,420.99/328.44 - Step 6: Final answer
x = 308.80
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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.