Finding the Fourth Proportional to 209,491.14, 289,103.85 and 114,003.99
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Solution
The fourth proportional to 209,491.14, 289,103.85 and 114,003.99 is: 157,328.81
Step by Step Solution
- Step 1: Write the proportion equation
209,491.14 : 289,103.85 = 114,003.99 : x - Step 2: Convert to fraction form
209,491.14/289,103.85 = 114,003.99/x - Step 3: Cross multiply
209,491.14x = 289,103.85 × 114,003.99 - Step 4: Simplify right side
209,491.14x = 32,958,992,424.36 - Step 5: Solve for x
x = 32,958,992,424.36/209,491.14 - Step 6: Final answer
x = 157,328.81
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1.5x scale
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.