Finding the Fourth Proportional to 189,998.60, 284,997.67 and 76,197.75
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Solution
The fourth proportional to 189,998.60, 284,997.67 and 76,197.75 is: 114,296.53
Step by Step Solution
- Step 1: Write the proportion equation
189,998.60 : 284,997.67 = 76,197.75 : x - Step 2: Convert to fraction form
189,998.60/284,997.67 = 76,197.75/x - Step 3: Cross multiply
189,998.60x = 284,997.67 × 76,197.75 - Step 4: Simplify right side
189,998.60x = 21,716,181,209.24 - Step 5: Solve for x
x = 21,716,181,209.24/189,998.60 - Step 6: Final answer
x = 114,296.53
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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.