Finding the Fourth Proportional to 328.36, 453.18 and 212.26
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Solution
The fourth proportional to 328.36, 453.18 and 212.26 is: 292.95
Step by Step Solution
- Step 1: Write the proportion equation
328.36 : 453.18 = 212.26 : x - Step 2: Convert to fraction form
328.36/453.18 = 212.26/x - Step 3: Cross multiply
328.36x = 453.18 × 212.26 - Step 4: Simplify right side
328.36x = 96,191.99 - Step 5: Solve for x
x = 96,191.99/328.36 - Step 6: Final answer
x = 292.95
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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.