Finding the Fourth Proportional to 189,566.83, 284,349.43 and 77,221.99
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Solution
The fourth proportional to 189,566.83, 284,349.43 and 77,221.99 is: 115,832.65
Step by Step Solution
- Step 1: Write the proportion equation
189,566.83 : 284,349.43 = 77,221.99 : x - Step 2: Convert to fraction form
189,566.83/284,349.43 = 77,221.99/x - Step 3: Cross multiply
189,566.83x = 284,349.43 × 77,221.99 - Step 4: Simplify right side
189,566.83x = 21,958,028,839.97 - Step 5: Solve for x
x = 21,958,028,839.97/189,566.83 - Step 6: Final answer
x = 115,832.65
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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.