Finding the Fourth Proportional to 326,771.28, 489,808.44 and 186,227.28
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Solution
The fourth proportional to 326,771.28, 489,808.44 and 186,227.28 is: 279,142.32
Step by Step Solution
- Step 1: Write the proportion equation
326,771.28 : 489,808.44 = 186,227.28 : x - Step 2: Convert to fraction form
326,771.28/489,808.44 = 186,227.28/x - Step 3: Cross multiply
326,771.28x = 489,808.44 × 186,227.28 - Step 4: Simplify right side
326,771.28x = 91,215,693,502.24 - Step 5: Solve for x
x = 91,215,693,502.24/326,771.28 - Step 6: Final answer
x = 279,142.32
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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.