Finding the Fourth Proportional to 397,660.16, 548,762.88 and 216,375.68
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Solution
The fourth proportional to 397,660.16, 548,762.88 and 216,375.68 is: 298,594.01
Step by Step Solution
- Step 1: Write the proportion equation
397,660.16 : 548,762.88 = 216,375.68 : x - Step 2: Convert to fraction form
397,660.16/548,762.88 = 216,375.68/x - Step 3: Cross multiply
397,660.16x = 548,762.88 × 216,375.68 - Step 4: Simplify right side
397,660.16x = 118,738,941,318.76 - Step 5: Solve for x
x = 118,738,941,318.76/397,660.16 - Step 6: Final answer
x = 298,594.01
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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.