Finding the Fourth Proportional to 236.81, 354.99 and 115.01
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Solution
The fourth proportional to 236.81, 354.99 and 115.01 is: 172.40
Step by Step Solution
- Step 1: Write the proportion equation
236.81 : 354.99 = 115.01 : x - Step 2: Convert to fraction form
236.81/354.99 = 115.01/x - Step 3: Cross multiply
236.81x = 354.99 × 115.01 - Step 4: Simplify right side
236.81x = 40,825.62 - Step 5: Solve for x
x = 40,825.62/236.81 - Step 6: Final answer
x = 172.40
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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.