Finding the Fourth Proportional to 294.21, 405.99 and 163.23
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Solution
The fourth proportional to 294.21, 405.99 and 163.23 is: 225.25
Step by Step Solution
- Step 1: Write the proportion equation
294.21 : 405.99 = 163.23 : x - Step 2: Convert to fraction form
294.21/405.99 = 163.23/x - Step 3: Cross multiply
294.21x = 405.99 × 163.23 - Step 4: Simplify right side
294.21x = 66,269.75 - Step 5: Solve for x
x = 66,269.75/294.21 - Step 6: Final answer
x = 225.25
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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.