Finding the Fourth Proportional to 287,712.98, 431,570.84 and 88,033.05
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Solution
The fourth proportional to 287,712.98, 431,570.84 and 88,033.05 is: 132,049.99
Step by Step Solution
- Step 1: Write the proportion equation
287,712.98 : 431,570.84 = 88,033.05 : x - Step 2: Convert to fraction form
287,712.98/431,570.84 = 88,033.05/x - Step 3: Cross multiply
287,712.98x = 431,570.84 × 88,033.05 - Step 4: Simplify right side
287,712.98x = 37,992,496,896.10 - Step 5: Solve for x
x = 37,992,496,896.10/287,712.98 - Step 6: Final answer
x = 132,049.99
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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.