Finding the Fourth Proportional to 290,908.80, 436,276.80 and 113,313.60
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Solution
The fourth proportional to 290,908.80, 436,276.80 and 113,313.60 is: 169,936.75
Step by Step Solution
- Step 1: Write the proportion equation
290,908.80 : 436,276.80 = 113,313.60 : x - Step 2: Convert to fraction form
290,908.80/436,276.80 = 113,313.60/x - Step 3: Cross multiply
290,908.80x = 436,276.80 × 113,313.60 - Step 4: Simplify right side
290,908.80x = 49,436,094,804.48 - Step 5: Solve for x
x = 49,436,094,804.48/290,908.80 - Step 6: Final answer
x = 169,936.75
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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.