Finding the Fourth Proportional to 328,974.84, 453,984.78 and 178,072.44
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Solution
The fourth proportional to 328,974.84, 453,984.78 and 178,072.44 is: 245,739.70
Step by Step Solution
- Step 1: Write the proportion equation
328,974.84 : 453,984.78 = 178,072.44 : x - Step 2: Convert to fraction form
328,974.84/453,984.78 = 178,072.44/x - Step 3: Cross multiply
328,974.84x = 453,984.78 × 178,072.44 - Step 4: Simplify right side
328,974.84x = 80,842,177,497.46 - Step 5: Solve for x
x = 80,842,177,497.46/328,974.84 - Step 6: Final answer
x = 245,739.70
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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.