Finding the Fourth Proportional to 328,471.12, 453,290.40 and 177,568.08
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Solution
The fourth proportional to 328,471.12, 453,290.40 and 177,568.08 is: 245,044.09
Step by Step Solution
- Step 1: Write the proportion equation
328,471.12 : 453,290.40 = 177,568.08 : x - Step 2: Convert to fraction form
328,471.12/453,290.40 = 177,568.08/x - Step 3: Cross multiply
328,471.12x = 453,290.40 × 177,568.08 - Step 4: Simplify right side
328,471.12x = 80,489,906,010.43 - Step 5: Solve for x
x = 80,489,906,010.43/328,471.12 - Step 6: Final answer
x = 245,044.09
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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.