Finding the Fourth Proportional to 382.21, 573.08 and 235.80
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Solution
The fourth proportional to 382.21, 573.08 and 235.80 is: 353.56
Step by Step Solution
- Step 1: Write the proportion equation
382.21 : 573.08 = 235.80 : x - Step 2: Convert to fraction form
382.21/573.08 = 235.80/x - Step 3: Cross multiply
382.21x = 573.08 × 235.80 - Step 4: Simplify right side
382.21x = 135,132.26 - Step 5: Solve for x
x = 135,132.26/382.21 - Step 6: Final answer
x = 353.56
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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.