Finding the Fourth Proportional to 337.21, 505.74 and 163.80
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Solution
The fourth proportional to 337.21, 505.74 and 163.80 is: 245.67
Step by Step Solution
- Step 1: Write the proportion equation
337.21 : 505.74 = 163.80 : x - Step 2: Convert to fraction form
337.21/505.74 = 163.80/x - Step 3: Cross multiply
337.21x = 505.74 × 163.80 - Step 4: Simplify right side
337.21x = 82,840.21 - Step 5: Solve for x
x = 82,840.21/337.21 - Step 6: Final answer
x = 245.67
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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.