Finding the Fourth Proportional to 383,986.20, 529,896.36 and 211,905.48
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Solution
The fourth proportional to 383,986.20, 529,896.36 and 211,905.48 is: 292,427.03
Step by Step Solution
- Step 1: Write the proportion equation
383,986.20 : 529,896.36 = 211,905.48 : x - Step 2: Convert to fraction form
383,986.20/529,896.36 = 211,905.48/x - Step 3: Cross multiply
383,986.20x = 529,896.36 × 211,905.48 - Step 4: Simplify right side
383,986.20x = 112,287,942,516.05 - Step 5: Solve for x
x = 112,287,942,516.05/383,986.20 - Step 6: Final answer
x = 292,427.03
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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.