Finding the Fourth Proportional to 311,120.79, 466,749.22 and 100,779.99
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Solution
The fourth proportional to 311,120.79, 466,749.22 and 100,779.99 is: 151,192.02
Step by Step Solution
- Step 1: Write the proportion equation
311,120.79 : 466,749.22 = 100,779.99 : x - Step 2: Convert to fraction form
311,120.79/466,749.22 = 100,779.99/x - Step 3: Cross multiply
311,120.79x = 466,749.22 × 100,779.99 - Step 4: Simplify right side
311,120.79x = 47,038,981,724.11 - Step 5: Solve for x
x = 47,038,981,724.11/311,120.79 - Step 6: Final answer
x = 151,192.02
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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.