Finding the Fourth Proportional to 278,236.38, 417,420.36 and 221,524.73
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Solution
The fourth proportional to 278,236.38, 417,420.36 and 221,524.73 is: 332,339.46
Step by Step Solution
- Step 1: Write the proportion equation
278,236.38 : 417,420.36 = 221,524.73 : x - Step 2: Convert to fraction form
278,236.38/417,420.36 = 221,524.73/x - Step 3: Cross multiply
278,236.38x = 417,420.36 × 221,524.73 - Step 4: Simplify right side
278,236.38x = 92,468,929,350.78 - Step 5: Solve for x
x = 92,468,929,350.78/278,236.38 - Step 6: Final answer
x = 332,339.46
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1.5x scale
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.