Finding the Fourth Proportional to 311,604.68, 430,046.58 and 190,826.12
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Solution
The fourth proportional to 311,604.68, 430,046.58 and 190,826.12 is: 263,359.72
Step by Step Solution
- Step 1: Write the proportion equation
311,604.68 : 430,046.58 = 190,826.12 : x - Step 2: Convert to fraction form
311,604.68/430,046.58 = 190,826.12/x - Step 3: Cross multiply
311,604.68x = 430,046.58 × 190,826.12 - Step 4: Simplify right side
311,604.68x = 82,064,120,280.67 - Step 5: Solve for x
x = 82,064,120,280.67/311,604.68 - Step 6: Final answer
x = 263,359.72
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1.5x scale
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.