Finding the Fourth Proportional to 203,653.48, 305,380.29 and 83,688.70
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Solution
The fourth proportional to 203,653.48, 305,380.29 and 83,688.70 is: 125,491.99
Step by Step Solution
- Step 1: Write the proportion equation
203,653.48 : 305,380.29 = 83,688.70 : x - Step 2: Convert to fraction form
203,653.48/305,380.29 = 83,688.70/x - Step 3: Cross multiply
203,653.48x = 305,380.29 × 83,688.70 - Step 4: Simplify right side
203,653.48x = 25,556,879,475.72 - Step 5: Solve for x
x = 25,556,879,475.72/203,653.48 - Step 6: Final answer
x = 125,491.99
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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.