Finding the Fourth Proportional to 189,785.80, 284,767.26 and 84,593.80
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Solution
The fourth proportional to 189,785.80, 284,767.26 and 84,593.80 is: 126,930.17
Step by Step Solution
- Step 1: Write the proportion equation
189,785.80 : 284,767.26 = 84,593.80 : x - Step 2: Convert to fraction form
189,785.80/284,767.26 = 84,593.80/x - Step 3: Cross multiply
189,785.80x = 284,767.26 × 84,593.80 - Step 4: Simplify right side
189,785.80x = 24,089,544,638.99 - Step 5: Solve for x
x = 24,089,544,638.99/189,785.80 - Step 6: Final answer
x = 126,930.17
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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.