Finding the Fourth Proportional to 397,108.08, 548,007.12 and 215,817.12
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Solution
The fourth proportional to 397,108.08, 548,007.12 and 215,817.12 is: 297,826.52
Step by Step Solution
- Step 1: Write the proportion equation
397,108.08 : 548,007.12 = 215,817.12 : x - Step 2: Convert to fraction form
397,108.08/548,007.12 = 215,817.12/x - Step 3: Cross multiply
397,108.08x = 548,007.12 × 215,817.12 - Step 4: Simplify right side
397,108.08x = 118,269,318,377.89 - Step 5: Solve for x
x = 118,269,318,377.89/397,108.08 - Step 6: Final answer
x = 297,826.52
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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.