Finding the Fourth Proportional to 380,861.44, 525,579.84 and 219,716.80
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Solution
The fourth proportional to 380,861.44, 525,579.84 and 219,716.80 is: 303,204.02
Step by Step Solution
- Step 1: Write the proportion equation
380,861.44 : 525,579.84 = 219,716.80 : x - Step 2: Convert to fraction form
380,861.44/525,579.84 = 219,716.80/x - Step 3: Cross multiply
380,861.44x = 525,579.84 × 219,716.80 - Step 4: Simplify right side
380,861.44x = 115,478,720,589.31 - Step 5: Solve for x
x = 115,478,720,589.31/380,861.44 - Step 6: Final answer
x = 303,204.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.