Finding the Fourth Proportional to 194.31, 268.26 and 135.99
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Solution
The fourth proportional to 194.31, 268.26 and 135.99 is: 187.74
Step by Step Solution
- Step 1: Write the proportion equation
194.31 : 268.26 = 135.99 : x - Step 2: Convert to fraction form
194.31/268.26 = 135.99/x - Step 3: Cross multiply
194.31x = 268.26 × 135.99 - Step 4: Simplify right side
194.31x = 36,480.68 - Step 5: Solve for x
x = 36,480.68/194.31 - Step 6: Final answer
x = 187.74
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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.