Finding the Fourth Proportional to 299,474.20, 449,211.30 and 121,889.80
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Solution
The fourth proportional to 299,474.20, 449,211.30 and 121,889.80 is: 182,834.70
Step by Step Solution
- Step 1: Write the proportion equation
299,474.20 : 449,211.30 = 121,889.80 : x - Step 2: Convert to fraction form
299,474.20/449,211.30 = 121,889.80/x - Step 3: Cross multiply
299,474.20x = 449,211.30 × 121,889.80 - Step 4: Simplify right side
299,474.20x = 54,754,275,514.74 - Step 5: Solve for x
x = 54,754,275,514.74/299,474.20 - Step 6: Final answer
x = 182,834.70
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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.