Finding the Fourth Proportional to 299,479.20, 449,218.80 and 121,894.80
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Solution
The fourth proportional to 299,479.20, 449,218.80 and 121,894.80 is: 182,842.20
Step by Step Solution
- Step 1: Write the proportion equation
299,479.20 : 449,218.80 = 121,894.80 : x - Step 2: Convert to fraction form
299,479.20/449,218.80 = 121,894.80/x - Step 3: Cross multiply
299,479.20x = 449,218.80 × 121,894.80 - Step 4: Simplify right side
299,479.20x = 54,757,435,782.24 - Step 5: Solve for x
x = 54,757,435,782.24/299,479.20 - Step 6: Final answer
x = 182,842.20
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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.