Finding the Fourth Proportional to 294.09, 405.80 and 163.08
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Solution
The fourth proportional to 294.09, 405.80 and 163.08 is: 225.02
Step by Step Solution
- Step 1: Write the proportion equation
294.09 : 405.80 = 163.08 : x - Step 2: Convert to fraction form
294.09/405.80 = 163.08/x - Step 3: Cross multiply
294.09x = 405.80 × 163.08 - Step 4: Simplify right side
294.09x = 66,177.05 - Step 5: Solve for x
x = 66,177.05/294.09 - Step 6: Final answer
x = 225.02
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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.