Finding the Fourth Proportional to 328.21, 490.93 and 296.26
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Solution
The fourth proportional to 328.21, 490.93 and 296.26 is: 443.14
Step by Step Solution
- Step 1: Write the proportion equation
328.21 : 490.93 = 296.26 : x - Step 2: Convert to fraction form
328.21/490.93 = 296.26/x - Step 3: Cross multiply
328.21x = 490.93 × 296.26 - Step 4: Simplify right side
328.21x = 145,440.95 - Step 5: Solve for x
x = 145,440.95/328.21 - Step 6: Final answer
x = 443.14
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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.