Finding the Fourth Proportional to 382.80, 528.44 and 235.44
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Solution
The fourth proportional to 382.80, 528.44 and 235.44 is: 325.02
Step by Step Solution
- Step 1: Write the proportion equation
382.80 : 528.44 = 235.44 : x - Step 2: Convert to fraction form
382.80/528.44 = 235.44/x - Step 3: Cross multiply
382.80x = 528.44 × 235.44 - Step 4: Simplify right side
382.80x = 124,415.91 - Step 5: Solve for x
x = 124,415.91/382.80 - Step 6: Final answer
x = 325.02
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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.