Finding the Fourth Proportional to 397,188.75, 548,124.12 and 215,901.09
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Solution
The fourth proportional to 397,188.75, 548,124.12 and 215,901.09 is: 297,945.49
Step by Step Solution
- Step 1: Write the proportion equation
397,188.75 : 548,124.12 = 215,901.09 : x - Step 2: Convert to fraction form
397,188.75/548,124.12 = 215,901.09/x - Step 3: Cross multiply
397,188.75x = 548,124.12 × 215,901.09 - Step 4: Simplify right side
397,188.75x = 118,340,594,963.29 - Step 5: Solve for x
x = 118,340,594,963.29/397,188.75 - Step 6: Final answer
x = 297,945.49
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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.