Finding the Fourth Proportional to 328,729.68, 453,648.12 and 177,826.68
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Solution
The fourth proportional to 328,729.68, 453,648.12 and 177,826.68 is: 245,401.45
Step by Step Solution
- Step 1: Write the proportion equation
328,729.68 : 453,648.12 = 177,826.68 : x - Step 2: Convert to fraction form
328,729.68/453,648.12 = 177,826.68/x - Step 3: Cross multiply
328,729.68x = 453,648.12 × 177,826.68 - Step 4: Simplify right side
328,729.68x = 80,670,739,067.84 - Step 5: Solve for x
x = 80,670,739,067.84/328,729.68 - Step 6: Final answer
x = 245,401.45
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1.5x scale
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.