Finding the Fourth Proportional to 272.91, 376.38 and 189.99
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Solution
The fourth proportional to 272.91, 376.38 and 189.99 is: 262.02
Step by Step Solution
- Step 1: Write the proportion equation
272.91 : 376.38 = 189.99 : x - Step 2: Convert to fraction form
272.91/376.38 = 189.99/x - Step 3: Cross multiply
272.91x = 376.38 × 189.99 - Step 4: Simplify right side
272.91x = 71,508.44 - Step 5: Solve for x
x = 71,508.44/272.91 - Step 6: Final answer
x = 262.02
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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.