Finding the Fourth Proportional to 389,664.21, 537,826.26 and 228,571.17
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Solution
The fourth proportional to 389,664.21, 537,826.26 and 228,571.17 is: 315,480.80
Step by Step Solution
- Step 1: Write the proportion equation
389,664.21 : 537,826.26 = 228,571.17 : x - Step 2: Convert to fraction form
389,664.21/537,826.26 = 228,571.17/x - Step 3: Cross multiply
389,664.21x = 537,826.26 × 228,571.17 - Step 4: Simplify right side
389,664.21x = 122,931,577,504.92 - Step 5: Solve for x
x = 122,931,577,504.92/389,664.21 - Step 6: Final answer
x = 315,480.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.