Finding the Fourth Proportional to 263.10, 394.63 and 108.99
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Solution
The fourth proportional to 263.10, 394.63 and 108.99 is: 163.48
Step by Step Solution
- Step 1: Write the proportion equation
263.10 : 394.63 = 108.99 : x - Step 2: Convert to fraction form
263.10/394.63 = 108.99/x - Step 3: Cross multiply
263.10x = 394.63 × 108.99 - Step 4: Simplify right side
263.10x = 43,010.72 - Step 5: Solve for x
x = 43,010.72/263.10 - Step 6: Final answer
x = 163.48
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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.