Finding the Fourth Proportional to 397,722.48, 548,859.36 and 216,435.84
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Solution
The fourth proportional to 397,722.48, 548,859.36 and 216,435.84 is: 298,682.73
Step by Step Solution
- Step 1: Write the proportion equation
397,722.48 : 548,859.36 = 216,435.84 : x - Step 2: Convert to fraction form
397,722.48/548,859.36 = 216,435.84/x - Step 3: Cross multiply
397,722.48x = 548,859.36 × 216,435.84 - Step 4: Simplify right side
397,722.48x = 118,792,836,623.46 - Step 5: Solve for x
x = 118,792,836,623.46/397,722.48 - Step 6: Final answer
x = 298,682.73
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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.