Finding the Fourth Proportional to 190.36, 286.99 and 178.63
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Solution
The fourth proportional to 190.36, 286.99 and 178.63 is: 269.31
Step by Step Solution
- Step 1: Write the proportion equation
190.36 : 286.99 = 178.63 : x - Step 2: Convert to fraction form
190.36/286.99 = 178.63/x - Step 3: Cross multiply
190.36x = 286.99 × 178.63 - Step 4: Simplify right side
190.36x = 51,265.02 - Step 5: Solve for x
x = 51,265.02/190.36 - Step 6: Final answer
x = 269.31
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.