Finding the Fourth Proportional to 328,579.28, 453,439.44 and 177,676.28
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Solution
The fourth proportional to 328,579.28, 453,439.44 and 177,676.28 is: 245,193.28
Step by Step Solution
- Step 1: Write the proportion equation
328,579.28 : 453,439.44 = 177,676.28 : x - Step 2: Convert to fraction form
328,579.28/453,439.44 = 177,676.28/x - Step 3: Cross multiply
328,579.28x = 453,439.44 × 177,676.28 - Step 4: Simplify right side
328,579.28x = 80,565,430,637.29 - Step 5: Solve for x
x = 80,565,430,637.29/328,579.28 - Step 6: Final answer
x = 245,193.28
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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.