Finding the Fourth Proportional to 287,984.60, 431,626.68 and 203,769.03
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Solution
The fourth proportional to 287,984.60, 431,626.68 and 203,769.03 is: 305,405.75
Step by Step Solution
- Step 1: Write the proportion equation
287,984.60 : 431,626.68 = 203,769.03 : x - Step 2: Convert to fraction form
287,984.60/431,626.68 = 203,769.03/x - Step 3: Cross multiply
287,984.60x = 431,626.68 × 203,769.03 - Step 4: Simplify right side
287,984.60x = 87,952,149,905.72 - Step 5: Solve for x
x = 87,952,149,905.72/287,984.60 - Step 6: Final answer
x = 305,405.75
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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.