Finding the Fourth Proportional to 352.49, 528.68 and 108.99
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Solution
The fourth proportional to 352.49, 528.68 and 108.99 is: 163.47
Step by Step Solution
- Step 1: Write the proportion equation
352.49 : 528.68 = 108.99 : x - Step 2: Convert to fraction form
352.49/528.68 = 108.99/x - Step 3: Cross multiply
352.49x = 528.68 × 108.99 - Step 4: Simplify right side
352.49x = 57,621.11 - Step 5: Solve for x
x = 57,621.11/352.49 - Step 6: Final answer
x = 163.47
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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.