Finding the Fourth Proportional to 392,715.75, 541,947.74 and 213,867.75
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Solution
The fourth proportional to 392,715.75, 541,947.74 and 213,867.75 is: 295,137.50
Step by Step Solution
- Step 1: Write the proportion equation
392,715.75 : 541,947.74 = 213,867.75 : x - Step 2: Convert to fraction form
392,715.75/541,947.74 = 213,867.75/x - Step 3: Cross multiply
392,715.75x = 541,947.74 × 213,867.75 - Step 4: Simplify right side
392,715.75x = 115,905,142,702.05 - Step 5: Solve for x
x = 115,905,142,702.05/392,715.75 - Step 6: Final answer
x = 295,137.50
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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.