Finding the Fourth Proportional to 419,427.99, 629,241.75 and 135,145.44
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Solution
The fourth proportional to 419,427.99, 629,241.75 and 135,145.44 is: 202,750.31
Step by Step Solution
- Step 1: Write the proportion equation
419,427.99 : 629,241.75 = 135,145.44 : x - Step 2: Convert to fraction form
419,427.99/629,241.75 = 135,145.44/x - Step 3: Cross multiply
419,427.99x = 629,241.75 × 135,145.44 - Step 4: Simplify right side
419,427.99x = 85,039,153,170.12 - Step 5: Solve for x
x = 85,039,153,170.12/419,427.99 - Step 6: Final answer
x = 202,750.31
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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.