Finding the Fourth Proportional to 421,883.70, 582,201.05 and 228,291.41
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Solution
The fourth proportional to 421,883.70, 582,201.05 and 228,291.41 is: 315,042.98
Step by Step Solution
- Step 1: Write the proportion equation
421,883.70 : 582,201.05 = 228,291.41 : x - Step 2: Convert to fraction form
421,883.70/582,201.05 = 228,291.41/x - Step 3: Cross multiply
421,883.70x = 582,201.05 × 228,291.41 - Step 4: Simplify right side
421,883.70x = 132,911,500,206.17 - Step 5: Solve for x
x = 132,911,500,206.17/421,883.70 - Step 6: Final answer
x = 315,042.98
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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.