Finding the Fourth Proportional to 352.14, 528.21 and 135.69
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Solution
The fourth proportional to 352.14, 528.21 and 135.69 is: 203.54
Step by Step Solution
- Step 1: Write the proportion equation
352.14 : 528.21 = 135.69 : x - Step 2: Convert to fraction form
352.14/528.21 = 135.69/x - Step 3: Cross multiply
352.14x = 528.21 × 135.69 - Step 4: Simplify right side
352.14x = 71,672.81 - Step 5: Solve for x
x = 71,672.81/352.14 - Step 6: Final answer
x = 203.54
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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.