Finding the Fourth Proportional to 332,138.40, 498,207.60 and 285,482.40
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Solution
The fourth proportional to 332,138.40, 498,207.60 and 285,482.40 is: 428,223.60
Step by Step Solution
- Step 1: Write the proportion equation
332,138.40 : 498,207.60 = 285,482.40 : x - Step 2: Convert to fraction form
332,138.40/498,207.60 = 285,482.40/x - Step 3: Cross multiply
332,138.40x = 498,207.60 × 285,482.40 - Step 4: Simplify right side
332,138.40x = 142,229,501,346.24 - Step 5: Solve for x
x = 142,229,501,346.24/332,138.40 - Step 6: Final answer
x = 428,223.60
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1.5x scale
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.