Finding the Fourth Proportional to 363,415.20, 545,122.80 and 268,936.80
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Solution
The fourth proportional to 363,415.20, 545,122.80 and 268,936.80 is: 403,405.20
Step by Step Solution
- Step 1: Write the proportion equation
363,415.20 : 545,122.80 = 268,936.80 : x - Step 2: Convert to fraction form
363,415.20/545,122.80 = 268,936.80/x - Step 3: Cross multiply
363,415.20x = 545,122.80 × 268,936.80 - Step 4: Simplify right side
363,415.20x = 146,603,581,439.04 - Step 5: Solve for x
x = 146,603,581,439.04/363,415.20 - Step 6: Final answer
x = 403,405.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.