Finding the Fourth Proportional to 291,207.75, 436,916.11 and 113,842.05
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Solution
The fourth proportional to 291,207.75, 436,916.11 and 113,842.05 is: 170,803.92
Step by Step Solution
- Step 1: Write the proportion equation
291,207.75 : 436,916.11 = 113,842.05 : x - Step 2: Convert to fraction form
291,207.75/436,916.11 = 113,842.05/x - Step 3: Cross multiply
291,207.75x = 436,916.11 × 113,842.05 - Step 4: Simplify right side
291,207.75x = 49,739,425,640.43 - Step 5: Solve for x
x = 49,739,425,640.43/291,207.75 - Step 6: Final answer
x = 170,803.92
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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.