Finding the Fourth Proportional to 272.36, 375.99 and 189.53
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Solution
The fourth proportional to 272.36, 375.99 and 189.53 is: 261.64
Step by Step Solution
- Step 1: Write the proportion equation
272.36 : 375.99 = 189.53 : x - Step 2: Convert to fraction form
272.36/375.99 = 189.53/x - Step 3: Cross multiply
272.36x = 375.99 × 189.53 - Step 4: Simplify right side
272.36x = 71,261.38 - Step 5: Solve for x
x = 71,261.38/272.36 - Step 6: Final answer
x = 261.64
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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.