Finding the Fourth Proportional to 190.73, 286.08 and 68.97
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Solution
The fourth proportional to 190.73, 286.08 and 68.97 is: 103.45
Step by Step Solution
- Step 1: Write the proportion equation
190.73 : 286.08 = 68.97 : x - Step 2: Convert to fraction form
190.73/286.08 = 68.97/x - Step 3: Cross multiply
190.73x = 286.08 × 68.97 - Step 4: Simplify right side
190.73x = 19,730.94 - Step 5: Solve for x
x = 19,730.94/190.73 - Step 6: Final answer
x = 103.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.