Finding the Fourth Proportional to 509,997.75, 764,992.07 and 190,138.75
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Solution
The fourth proportional to 509,997.75, 764,992.07 and 190,138.75 is: 285,206.42
Step by Step Solution
- Step 1: Write the proportion equation
509,997.75 : 764,992.07 = 190,138.75 : x - Step 2: Convert to fraction form
509,997.75/764,992.07 = 190,138.75/x - Step 3: Cross multiply
509,997.75x = 764,992.07 × 190,138.75 - Step 4: Simplify right side
509,997.75x = 145,454,633,086.54 - Step 5: Solve for x
x = 145,454,633,086.54/509,997.75 - Step 6: Final answer
x = 285,206.42
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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.