Finding the Fourth Proportional to 397,269.18, 548,242.28 and 215,993.31
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Solution
The fourth proportional to 397,269.18, 548,242.28 and 215,993.31 is: 298,076.65
Step by Step Solution
- Step 1: Write the proportion equation
397,269.18 : 548,242.28 = 215,993.31 : x - Step 2: Convert to fraction form
397,269.18/548,242.28 = 215,993.31/x - Step 3: Cross multiply
397,269.18x = 548,242.28 × 215,993.31 - Step 4: Simplify right side
397,269.18x = 118,416,664,739.15 - Step 5: Solve for x
x = 118,416,664,739.15/397,269.18 - Step 6: Final answer
x = 298,076.65
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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.