Finding the Fourth Proportional to 311,647.68, 430,357.05 and 235,035.54
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Solution
The fourth proportional to 311,647.68, 430,357.05 and 235,035.54 is: 324,562.67
Step by Step Solution
- Step 1: Write the proportion equation
311,647.68 : 430,357.05 = 235,035.54 : x - Step 2: Convert to fraction form
311,647.68/430,357.05 = 235,035.54/x - Step 3: Cross multiply
311,647.68x = 430,357.05 × 235,035.54 - Step 4: Simplify right side
311,647.68x = 101,149,201,639.56 - Step 5: Solve for x
x = 101,149,201,639.56/311,647.68 - Step 6: Final answer
x = 324,562.67
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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.