Finding the Fourth Proportional to 194.99, 269.09 and 107.67
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Solution
The fourth proportional to 194.99, 269.09 and 107.67 is: 148.59
Step by Step Solution
- Step 1: Write the proportion equation
194.99 : 269.09 = 107.67 : x - Step 2: Convert to fraction form
194.99/269.09 = 107.67/x - Step 3: Cross multiply
194.99x = 269.09 × 107.67 - Step 4: Simplify right side
194.99x = 28,972.92 - Step 5: Solve for x
x = 28,972.92/194.99 - Step 6: Final answer
x = 148.59
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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.