Finding the Fourth Proportional to 311,107.20, 466,660.80 and 248,899.20
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Solution
The fourth proportional to 311,107.20, 466,660.80 and 248,899.20 is: 373,348.80
Step by Step Solution
- Step 1: Write the proportion equation
311,107.20 : 466,660.80 = 248,899.20 : x - Step 2: Convert to fraction form
311,107.20/466,660.80 = 248,899.20/x - Step 3: Cross multiply
311,107.20x = 466,660.80 × 248,899.20 - Step 4: Simplify right side
311,107.20x = 116,151,499,791.36 - Step 5: Solve for x
x = 116,151,499,791.36/311,107.20 - Step 6: Final answer
x = 373,348.80
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1.5x scale
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.