Finding the Fourth Proportional to 287,468.20, 393,832.85 and 276,693.99
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Solution
The fourth proportional to 287,468.20, 393,832.85 and 276,693.99 is: 379,072.13
Step by Step Solution
- Step 1: Write the proportion equation
287,468.20 : 393,832.85 = 276,693.99 : x - Step 2: Convert to fraction form
287,468.20/393,832.85 = 276,693.99/x - Step 3: Cross multiply
287,468.20x = 393,832.85 × 276,693.99 - Step 4: Simplify right side
287,468.20x = 108,971,182,659.57 - Step 5: Solve for x
x = 108,971,182,659.57/287,468.20 - Step 6: Final answer
x = 379,072.13
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.