Finding the Fourth Proportional to 397,114.08, 548,015.40 and 215,823.12
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Solution
The fourth proportional to 397,114.08, 548,015.40 and 215,823.12 is: 297,834.80
Step by Step Solution
- Step 1: Write the proportion equation
397,114.08 : 548,015.40 = 215,823.12 : x - Step 2: Convert to fraction form
397,114.08/548,015.40 = 215,823.12/x - Step 3: Cross multiply
397,114.08x = 548,015.40 × 215,823.12 - Step 4: Simplify right side
397,114.08x = 118,274,393,436.05 - Step 5: Solve for x
x = 118,274,393,436.05/397,114.08 - Step 6: Final answer
x = 297,834.80
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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.