Finding the Fourth Proportional to 352.60, 528.60 and 157.68
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Solution
The fourth proportional to 352.60, 528.60 and 157.68 is: 236.39
Step by Step Solution
- Step 1: Write the proportion equation
352.60 : 528.60 = 157.68 : x - Step 2: Convert to fraction form
352.60/528.60 = 157.68/x - Step 3: Cross multiply
352.60x = 528.60 × 157.68 - Step 4: Simplify right side
352.60x = 83,350.24 - Step 5: Solve for x
x = 83,350.24/352.60 - Step 6: Final answer
x = 236.39
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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.