Finding the Fourth Proportional to 328.22, 453.05 and 203.99
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Solution
The fourth proportional to 328.22, 453.05 and 203.99 is: 281.57
Step by Step Solution
- Step 1: Write the proportion equation
328.22 : 453.05 = 203.99 : x - Step 2: Convert to fraction form
328.22/453.05 = 203.99/x - Step 3: Cross multiply
328.22x = 453.05 × 203.99 - Step 4: Simplify right side
328.22x = 92,415.91 - Step 5: Solve for x
x = 92,415.91/328.22 - Step 6: Final answer
x = 281.57
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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.