Finding the Fourth Proportional to 419,649.24, 629,563.38 and 135,355.77
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Solution
The fourth proportional to 419,649.24, 629,563.38 and 135,355.77 is: 203,062.53
Step by Step Solution
- Step 1: Write the proportion equation
419,649.24 : 629,563.38 = 135,355.77 : x - Step 2: Convert to fraction form
419,649.24/629,563.38 = 135,355.77/x - Step 3: Cross multiply
419,649.24x = 629,563.38 × 135,355.77 - Step 4: Simplify right side
419,649.24x = 85,215,036,063.70 - Step 5: Solve for x
x = 85,215,036,063.70/419,649.24 - Step 6: Final answer
x = 203,062.53
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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.