Finding the Fourth Proportional to 352.08, 528.36 and 135.68
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Solution
The fourth proportional to 352.08, 528.36 and 135.68 is: 203.61
Step by Step Solution
- Step 1: Write the proportion equation
352.08 : 528.36 = 135.68 : x - Step 2: Convert to fraction form
352.08/528.36 = 135.68/x - Step 3: Cross multiply
352.08x = 528.36 × 135.68 - Step 4: Simplify right side
352.08x = 71,687.88 - Step 5: Solve for x
x = 71,687.88/352.08 - Step 6: Final answer
x = 203.61
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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.