Finding the Fourth Proportional to 385,464.96, 578,236.14 and 132,711.99
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Solution
The fourth proportional to 385,464.96, 578,236.14 and 132,711.99 is: 199,081.31
Step by Step Solution
- Step 1: Write the proportion equation
385,464.96 : 578,236.14 = 132,711.99 : x - Step 2: Convert to fraction form
385,464.96/578,236.14 = 132,711.99/x - Step 3: Cross multiply
385,464.96x = 578,236.14 × 132,711.99 - Step 4: Simplify right side
385,464.96x = 76,738,868,829.32 - Step 5: Solve for x
x = 76,738,868,829.32/385,464.96 - Step 6: Final answer
x = 199,081.31
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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.