Finding the Fourth Proportional to 263.73, 363.93 and 153.19
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Solution
The fourth proportional to 263.73, 363.93 and 153.19 is: 211.39
Step by Step Solution
- Step 1: Write the proportion equation
263.73 : 363.93 = 153.19 : x - Step 2: Convert to fraction form
263.73/363.93 = 153.19/x - Step 3: Cross multiply
263.73x = 363.93 × 153.19 - Step 4: Simplify right side
263.73x = 55,749.13 - Step 5: Solve for x
x = 55,749.13/263.73 - Step 6: Final answer
x = 211.39
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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.