Finding the Fourth Proportional to 287,728.84, 430,436.70 and 248,704.84
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Solution
The fourth proportional to 287,728.84, 430,436.70 and 248,704.84 is: 372,057.56
Step by Step Solution
- Step 1: Write the proportion equation
287,728.84 : 430,436.70 = 248,704.84 : x - Step 2: Convert to fraction form
287,728.84/430,436.70 = 248,704.84/x - Step 3: Cross multiply
287,728.84x = 430,436.70 × 248,704.84 - Step 4: Simplify right side
287,728.84x = 107,051,690,603.63 - Step 5: Solve for x
x = 107,051,690,603.63/287,728.84 - Step 6: Final answer
x = 372,057.56
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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.