Finding the Fourth Proportional to 396,877.30, 547,674.96 and 235,728.08
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Solution
The fourth proportional to 396,877.30, 547,674.96 and 235,728.08 is: 325,295.42
Step by Step Solution
- Step 1: Write the proportion equation
396,877.30 : 547,674.96 = 235,728.08 : x - Step 2: Convert to fraction form
396,877.30/547,674.96 = 235,728.08/x - Step 3: Cross multiply
396,877.30x = 547,674.96 × 235,728.08 - Step 4: Simplify right side
396,877.30x = 129,102,366,784.88 - Step 5: Solve for x
x = 129,102,366,784.88/396,877.30 - Step 6: Final answer
x = 325,295.42
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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.