Finding the Fourth Proportional to 519,732.75, 717,231.20 and 281,268.75
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Solution
The fourth proportional to 519,732.75, 717,231.20 and 281,268.75 is: 388,150.88
Step by Step Solution
- Step 1: Write the proportion equation
519,732.75 : 717,231.20 = 281,268.75 : x - Step 2: Convert to fraction form
519,732.75/717,231.20 = 281,268.75/x - Step 3: Cross multiply
519,732.75x = 717,231.20 × 281,268.75 - Step 4: Simplify right side
519,732.75x = 201,734,723,085 - Step 5: Solve for x
x = 201,734,723,085/519,732.75 - Step 6: Final answer
x = 388,150.88
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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.