Finding the Fourth Proportional to 313,977.20, 471,917.36 and 207,723.60
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Solution
The fourth proportional to 313,977.20, 471,917.36 and 207,723.60 is: 312,214.94
Step by Step Solution
- Step 1: Write the proportion equation
313,977.20 : 471,917.36 = 207,723.60 : x - Step 2: Convert to fraction form
313,977.20/471,917.36 = 207,723.60/x - Step 3: Cross multiply
313,977.20x = 471,917.36 × 207,723.60 - Step 4: Simplify right side
313,977.20x = 98,028,372,921.70 - Step 5: Solve for x
x = 98,028,372,921.70/313,977.20 - Step 6: Final answer
x = 312,214.94
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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.