Finding the Fourth Proportional to 537,620.80, 806,431.20 and 221,915.20
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Solution
The fourth proportional to 537,620.80, 806,431.20 and 221,915.20 is: 332,872.80
Step by Step Solution
- Step 1: Write the proportion equation
537,620.80 : 806,431.20 = 221,915.20 : x - Step 2: Convert to fraction form
537,620.80/806,431.20 = 221,915.20/x - Step 3: Cross multiply
537,620.80x = 806,431.20 × 221,915.20 - Step 4: Simplify right side
537,620.80x = 178,959,341,034.24 - Step 5: Solve for x
x = 178,959,341,034.24/537,620.80 - Step 6: Final answer
x = 332,872.80
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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.