Finding the Fourth Proportional to 407.24, 611.09 and 163.70
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Solution
The fourth proportional to 407.24, 611.09 and 163.70 is: 245.64
Step by Step Solution
- Step 1: Write the proportion equation
407.24 : 611.09 = 163.70 : x - Step 2: Convert to fraction form
407.24/611.09 = 163.70/x - Step 3: Cross multiply
407.24x = 611.09 × 163.70 - Step 4: Simplify right side
407.24x = 100,034.61 - Step 5: Solve for x
x = 100,034.61/407.24 - Step 6: Final answer
x = 245.64
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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.