Finding the Fourth Proportional to 254,170.15, 381,257.96 and 76,678.70
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Solution
The fourth proportional to 254,170.15, 381,257.96 and 76,678.70 is: 115,018.87
Step by Step Solution
- Step 1: Write the proportion equation
254,170.15 : 381,257.96 = 76,678.70 : x - Step 2: Convert to fraction form
254,170.15/381,257.96 = 76,678.70/x - Step 3: Cross multiply
254,170.15x = 381,257.96 × 76,678.70 - Step 4: Simplify right side
254,170.15x = 29,234,362,735.31 - Step 5: Solve for x
x = 29,234,362,735.31/254,170.15 - Step 6: Final answer
x = 115,018.87
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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.