Finding the Fourth Proportional to 311.60, 430.44 and 246.92
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Solution
The fourth proportional to 311.60, 430.44 and 246.92 is: 341.09
Step by Step Solution
- Step 1: Write the proportion equation
311.60 : 430.44 = 246.92 : x - Step 2: Convert to fraction form
311.60/430.44 = 246.92/x - Step 3: Cross multiply
311.60x = 430.44 × 246.92 - Step 4: Simplify right side
311.60x = 106,284.24 - Step 5: Solve for x
x = 106,284.24/311.60 - Step 6: Final answer
x = 341.09
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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.