Finding the Fourth Proportional to 252.09, 377.99 and 129.99
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Solution
The fourth proportional to 252.09, 377.99 and 129.99 is: 194.91
Step by Step Solution
- Step 1: Write the proportion equation
252.09 : 377.99 = 129.99 : x - Step 2: Convert to fraction form
252.09/377.99 = 129.99/x - Step 3: Cross multiply
252.09x = 377.99 × 129.99 - Step 4: Simplify right side
252.09x = 49,134.27 - Step 5: Solve for x
x = 49,134.27/252.09 - Step 6: Final answer
x = 194.91
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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.