Finding the Fourth Proportional to 287,234.16, 430,850.90 and 76,866.62
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Solution
The fourth proportional to 287,234.16, 430,850.90 and 76,866.62 is: 115,299.84
Step by Step Solution
- Step 1: Write the proportion equation
287,234.16 : 430,850.90 = 76,866.62 : x - Step 2: Convert to fraction form
287,234.16/430,850.90 = 76,866.62/x - Step 3: Cross multiply
287,234.16x = 430,850.90 × 76,866.62 - Step 4: Simplify right side
287,234.16x = 33,118,052,406.96 - Step 5: Solve for x
x = 33,118,052,406.96/287,234.16 - Step 6: Final answer
x = 115,299.84
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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.