Finding the Fourth Proportional to 419,857.36, 629,908.74 and 135,541.24
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Solution
The fourth proportional to 419,857.36, 629,908.74 and 135,541.24 is: 203,351.47
Step by Step Solution
- Step 1: Write the proportion equation
419,857.36 : 629,908.74 = 135,541.24 : x - Step 2: Convert to fraction form
419,857.36/629,908.74 = 135,541.24/x - Step 3: Cross multiply
419,857.36x = 629,908.74 × 135,541.24 - Step 4: Simplify right side
419,857.36x = 85,378,611,706.44 - Step 5: Solve for x
x = 85,378,611,706.44/419,857.36 - Step 6: Final answer
x = 203,351.47
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.