Finding the Fourth Proportional to 274.36, 376.37 and 257.80
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Solution
The fourth proportional to 274.36, 376.37 and 257.80 is: 353.65
Step by Step Solution
- Step 1: Write the proportion equation
274.36 : 376.37 = 257.80 : x - Step 2: Convert to fraction form
274.36/376.37 = 257.80/x - Step 3: Cross multiply
274.36x = 376.37 × 257.80 - Step 4: Simplify right side
274.36x = 97,028.19 - Step 5: Solve for x
x = 97,028.19/274.36 - Step 6: Final answer
x = 353.65
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.