Finding the Fourth Proportional to 328,891.20, 453,871.26 and 177,988.20
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Solution
The fourth proportional to 328,891.20, 453,871.26 and 177,988.20 is: 245,624.48
Step by Step Solution
- Step 1: Write the proportion equation
328,891.20 : 453,871.26 = 177,988.20 : x - Step 2: Convert to fraction form
328,891.20/453,871.26 = 177,988.20/x - Step 3: Cross multiply
328,891.20x = 453,871.26 × 177,988.20 - Step 4: Simplify right side
328,891.20x = 80,783,728,599.13 - Step 5: Solve for x
x = 80,783,728,599.13/328,891.20 - Step 6: Final answer
x = 245,624.48
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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.