Finding the Fourth Proportional to 311,793.72, 430,173.36 and 190,808.88
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Solution
The fourth proportional to 311,793.72, 430,173.36 and 190,808.88 is: 263,253.85
Step by Step Solution
- Step 1: Write the proportion equation
311,793.72 : 430,173.36 = 190,808.88 : x - Step 2: Convert to fraction form
311,793.72/430,173.36 = 190,808.88/x - Step 3: Cross multiply
311,793.72x = 430,173.36 × 190,808.88 - Step 4: Simplify right side
311,793.72x = 82,080,897,027.44 - Step 5: Solve for x
x = 82,080,897,027.44/311,793.72 - Step 6: Final answer
x = 263,253.85
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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.