Finding the Fourth Proportional to 239.22, 329.94 and 186.84
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Solution
The fourth proportional to 239.22, 329.94 and 186.84 is: 257.70
Step by Step Solution
- Step 1: Write the proportion equation
239.22 : 329.94 = 186.84 : x - Step 2: Convert to fraction form
239.22/329.94 = 186.84/x - Step 3: Cross multiply
239.22x = 329.94 × 186.84 - Step 4: Simplify right side
239.22x = 61,645.99 - Step 5: Solve for x
x = 61,645.99/239.22 - Step 6: Final answer
x = 257.70
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.