Finding the Fourth Proportional to 312.62, 466.44 and 277.79
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Solution
The fourth proportional to 312.62, 466.44 and 277.79 is: 414.47
Step by Step Solution
- Step 1: Write the proportion equation
312.62 : 466.44 = 277.79 : x - Step 2: Convert to fraction form
312.62/466.44 = 277.79/x - Step 3: Cross multiply
312.62x = 466.44 × 277.79 - Step 4: Simplify right side
312.62x = 129,568.99 - Step 5: Solve for x
x = 129,568.99/312.62 - Step 6: Final answer
x = 414.47
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.