Finding the Fourth Proportional to 512,268.30, 768,621.15 and 245,891.70
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Solution
The fourth proportional to 512,268.30, 768,621.15 and 245,891.70 is: 368,942.53
Step by Step Solution
- Step 1: Write the proportion equation
512,268.30 : 768,621.15 = 245,891.70 : x - Step 2: Convert to fraction form
512,268.30/768,621.15 = 245,891.70/x - Step 3: Cross multiply
512,268.30x = 768,621.15 × 245,891.70 - Step 4: Simplify right side
512,268.30x = 188,997,561,229.46 - Step 5: Solve for x
x = 188,997,561,229.46/512,268.30 - Step 6: Final answer
x = 368,942.53
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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.