Finding the Fourth Proportional to 251.44, 377.19 and 129.67
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Solution
The fourth proportional to 251.44, 377.19 and 129.67 is: 194.52
Step by Step Solution
- Step 1: Write the proportion equation
251.44 : 377.19 = 129.67 : x - Step 2: Convert to fraction form
251.44/377.19 = 129.67/x - Step 3: Cross multiply
251.44x = 377.19 × 129.67 - Step 4: Simplify right side
251.44x = 48,909.28 - Step 5: Solve for x
x = 48,909.28/251.44 - Step 6: Final answer
x = 194.52
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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.