Finding the Fourth Proportional to 399,442.28, 551,234.10 and 227,351.84
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Solution
The fourth proportional to 399,442.28, 551,234.10 and 227,351.84 is: 313,747.68
Step by Step Solution
- Step 1: Write the proportion equation
399,442.28 : 551,234.10 = 227,351.84 : x - Step 2: Convert to fraction form
399,442.28/551,234.10 = 227,351.84/x - Step 3: Cross multiply
399,442.28x = 551,234.10 × 227,351.84 - Step 4: Simplify right side
399,442.28x = 125,324,086,905.74 - Step 5: Solve for x
x = 125,324,086,905.74/399,442.28 - Step 6: Final answer
x = 313,747.68
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1.5x scale
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.