Finding the Fourth Proportional to 203,916.45, 305,874.68 and 133,057.65
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Solution
The fourth proportional to 203,916.45, 305,874.68 and 133,057.65 is: 199,586.48
Step by Step Solution
- Step 1: Write the proportion equation
203,916.45 : 305,874.68 = 133,057.65 : x - Step 2: Convert to fraction form
203,916.45/305,874.68 = 133,057.65/x - Step 3: Cross multiply
203,916.45x = 305,874.68 × 133,057.65 - Step 4: Simplify right side
203,916.45x = 40,698,966,115.30 - Step 5: Solve for x
x = 40,698,966,115.30/203,916.45 - Step 6: Final answer
x = 199,586.48
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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.