Finding the Fourth Proportional to 294.18, 405.95 and 163.18
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Solution
The fourth proportional to 294.18, 405.95 and 163.18 is: 225.18
Step by Step Solution
- Step 1: Write the proportion equation
294.18 : 405.95 = 163.18 : x - Step 2: Convert to fraction form
294.18/405.95 = 163.18/x - Step 3: Cross multiply
294.18x = 405.95 × 163.18 - Step 4: Simplify right side
294.18x = 66,243.75 - Step 5: Solve for x
x = 66,243.75/294.18 - Step 6: Final answer
x = 225.18
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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.