Finding the Fourth Proportional to 129.93, 194.88 and 33.74
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Solution
The fourth proportional to 129.93, 194.88 and 33.74 is: 50.61
Step by Step Solution
- Step 1: Write the proportion equation
129.93 : 194.88 = 33.74 : x - Step 2: Convert to fraction form
129.93/194.88 = 33.74/x - Step 3: Cross multiply
129.93x = 194.88 × 33.74 - Step 4: Simplify right side
129.93x = 6,575.25 - Step 5: Solve for x
x = 6,575.25/129.93 - Step 6: Final answer
x = 50.61
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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.