Finding the Fourth Proportional to 291,435.75, 436,861.79 and 113,698.23
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Solution
The fourth proportional to 291,435.75, 436,861.79 and 113,698.23 is: 170,433.49
Step by Step Solution
- Step 1: Write the proportion equation
291,435.75 : 436,861.79 = 113,698.23 : x - Step 2: Convert to fraction form
291,435.75/436,861.79 = 113,698.23/x - Step 3: Cross multiply
291,435.75x = 436,861.79 × 113,698.23 - Step 4: Simplify right side
291,435.75x = 49,670,411,709.14 - Step 5: Solve for x
x = 49,670,411,709.14/291,435.75 - Step 6: Final answer
x = 170,433.49
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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.