Finding the Fourth Proportional to 378,793.18, 522,824.05 and 217,741.65
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Solution
The fourth proportional to 378,793.18, 522,824.05 and 217,741.65 is: 300,534.90
Step by Step Solution
- Step 1: Write the proportion equation
378,793.18 : 522,824.05 = 217,741.65 : x - Step 2: Convert to fraction form
378,793.18/522,824.05 = 217,741.65/x - Step 3: Cross multiply
378,793.18x = 522,824.05 × 217,741.65 - Step 4: Simplify right side
378,793.18x = 113,840,570,997.02 - Step 5: Solve for x
x = 113,840,570,997.02/378,793.18 - Step 6: Final answer
x = 300,534.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.