Finding the Fourth Proportional to 287,900.93, 430,965.66 and 187,845.68
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Solution
The fourth proportional to 287,900.93, 430,965.66 and 187,845.68 is: 281,190.61
Step by Step Solution
- Step 1: Write the proportion equation
287,900.93 : 430,965.66 = 187,845.68 : x - Step 2: Convert to fraction form
287,900.93/430,965.66 = 187,845.68/x - Step 3: Cross multiply
287,900.93x = 430,965.66 × 187,845.68 - Step 4: Simplify right side
287,900.93x = 80,955,039,241.18 - Step 5: Solve for x
x = 80,955,039,241.18/287,900.93 - Step 6: Final answer
x = 281,190.61
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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.