Finding the Fourth Proportional to 397,269.68, 548,242.97 and 215,993.81
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Solution
The fourth proportional to 397,269.68, 548,242.97 and 215,993.81 is: 298,077.33
Step by Step Solution
- Step 1: Write the proportion equation
397,269.68 : 548,242.97 = 215,993.81 : x - Step 2: Convert to fraction form
397,269.68/548,242.97 = 215,993.81/x - Step 3: Cross multiply
397,269.68x = 548,242.97 × 215,993.81 - Step 4: Simplify right side
397,269.68x = 118,417,084,074.83 - Step 5: Solve for x
x = 118,417,084,074.83/397,269.68 - Step 6: Final answer
x = 298,077.33
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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.