Finding the Fourth Proportional to 352.18, 528.36 and 135.70
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Solution
The fourth proportional to 352.18, 528.36 and 135.70 is: 203.58
Step by Step Solution
- Step 1: Write the proportion equation
352.18 : 528.36 = 135.70 : x - Step 2: Convert to fraction form
352.18/528.36 = 135.70/x - Step 3: Cross multiply
352.18x = 528.36 × 135.70 - Step 4: Simplify right side
352.18x = 71,695.13 - Step 5: Solve for x
x = 71,695.13/352.18 - Step 6: Final answer
x = 203.58
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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.