Finding the Fourth Proportional to 236.62, 354.79 and 115.08
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Solution
The fourth proportional to 236.62, 354.79 and 115.08 is: 172.55
Step by Step Solution
- Step 1: Write the proportion equation
236.62 : 354.79 = 115.08 : x - Step 2: Convert to fraction form
236.62/354.79 = 115.08/x - Step 3: Cross multiply
236.62x = 354.79 × 115.08 - Step 4: Simplify right side
236.62x = 40,829.23 - Step 5: Solve for x
x = 40,829.23/236.62 - Step 6: Final answer
x = 172.55
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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.