Finding the Fourth Proportional to 291,062.05, 436,593.09 and 80,699.99
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Solution
The fourth proportional to 291,062.05, 436,593.09 and 80,699.99 is: 121,049.99
Step by Step Solution
- Step 1: Write the proportion equation
291,062.05 : 436,593.09 = 80,699.99 : x - Step 2: Convert to fraction form
291,062.05/436,593.09 = 80,699.99/x - Step 3: Cross multiply
291,062.05x = 436,593.09 × 80,699.99 - Step 4: Simplify right side
291,062.05x = 35,233,057,997.07 - Step 5: Solve for x
x = 35,233,057,997.07/291,062.05 - Step 6: Final answer
x = 121,049.99
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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.