Finding the Third Proportional to 287,660.25 and 431,490.75
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Solution
The third proportional to 287,660.25 and 431,490.75 is: 647,236.69
Step by Step Solution
- Step 1: Write the proportion equation
287,660.25 : 431,490.75 = 431,490.75 : x - Step 2: Convert to fraction form
287,660.25/431,490.75 = 431,490.75/x - Step 3: Cross multiply
287,660.25x = 431,490.75 × 431,490.75 - Step 4: Simplify right side
287,660.25x = 186,184,267,335.56 - Step 5: Solve for x
x = 186,184,267,335.56/287,660.25 - Step 6: Final answer
x = 647,236.69
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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.