Finding the Fourth Proportional to 287,524.28, 431,352.03 and 87,873.05
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Solution
The fourth proportional to 287,524.28, 431,352.03 and 87,873.05 is: 131,829.63
Step by Step Solution
- Step 1: Write the proportion equation
287,524.28 : 431,352.03 = 87,873.05 : x - Step 2: Convert to fraction form
287,524.28/431,352.03 = 87,873.05/x - Step 3: Cross multiply
287,524.28x = 431,352.03 × 87,873.05 - Step 4: Simplify right side
287,524.28x = 37,904,218,499.79 - Step 5: Solve for x
x = 37,904,218,499.79/287,524.28 - Step 6: Final answer
x = 131,829.63
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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.