Finding the Fourth Proportional to 311,236.76, 466,972.80 and 121,832.49
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Solution
The fourth proportional to 311,236.76, 466,972.80 and 121,832.49 is: 182,794.79
Step by Step Solution
- Step 1: Write the proportion equation
311,236.76 : 466,972.80 = 121,832.49 : x - Step 2: Convert to fraction form
311,236.76/466,972.80 = 121,832.49/x - Step 3: Cross multiply
311,236.76x = 466,972.80 × 121,832.49 - Step 4: Simplify right side
311,236.76x = 56,892,458,986.27 - Step 5: Solve for x
x = 56,892,458,986.27/311,236.76 - Step 6: Final answer
x = 182,794.79
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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.