Finding the Fourth Proportional to 248.75, 343.34 and 178.68
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Solution
The fourth proportional to 248.75, 343.34 and 178.68 is: 246.63
Step by Step Solution
- Step 1: Write the proportion equation
248.75 : 343.34 = 178.68 : x - Step 2: Convert to fraction form
248.75/343.34 = 178.68/x - Step 3: Cross multiply
248.75x = 343.34 × 178.68 - Step 4: Simplify right side
248.75x = 61,347.99 - Step 5: Solve for x
x = 61,347.99/248.75 - Step 6: Final answer
x = 246.63
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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.