Finding the Fourth Proportional to 447,136.21, 616,784.68 and 281,299.96
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Solution
The fourth proportional to 447,136.21, 616,784.68 and 281,299.96 is: 388,028.31
Step by Step Solution
- Step 1: Write the proportion equation
447,136.21 : 616,784.68 = 281,299.96 : x - Step 2: Convert to fraction form
447,136.21/616,784.68 = 281,299.96/x - Step 3: Cross multiply
447,136.21x = 616,784.68 × 281,299.96 - Step 4: Simplify right side
447,136.21x = 173,501,505,812.61 - Step 5: Solve for x
x = 173,501,505,812.61/447,136.21 - Step 6: Final answer
x = 388,028.31
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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.