Finding the Fourth Proportional to 379,723.20, 569,584.80 and 202,138.80
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Solution
The fourth proportional to 379,723.20, 569,584.80 and 202,138.80 is: 303,208.20
Step by Step Solution
- Step 1: Write the proportion equation
379,723.20 : 569,584.80 = 202,138.80 : x - Step 2: Convert to fraction form
379,723.20/569,584.80 = 202,138.80/x - Step 3: Cross multiply
379,723.20x = 569,584.80 × 202,138.80 - Step 4: Simplify right side
379,723.20x = 115,135,187,970.24 - Step 5: Solve for x
x = 115,135,187,970.24/379,723.20 - Step 6: Final answer
x = 303,208.20
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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.