Finding the Fourth Proportional to 236.25, 325.80 and 153.42
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Solution
The fourth proportional to 236.25, 325.80 and 153.42 is: 211.57
Step by Step Solution
- Step 1: Write the proportion equation
236.25 : 325.80 = 153.42 : x - Step 2: Convert to fraction form
236.25/325.80 = 153.42/x - Step 3: Cross multiply
236.25x = 325.80 × 153.42 - Step 4: Simplify right side
236.25x = 49,984.24 - Step 5: Solve for x
x = 49,984.24/236.25 - Step 6: Final answer
x = 211.57
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.