Finding the Fourth Proportional to 252,495.79, 378,743.21 and 147,240.95
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Solution
The fourth proportional to 252,495.79, 378,743.21 and 147,240.95 is: 220,861.15
Step by Step Solution
- Step 1: Write the proportion equation
252,495.79 : 378,743.21 = 147,240.95 : x - Step 2: Convert to fraction form
252,495.79/378,743.21 = 147,240.95/x - Step 3: Cross multiply
252,495.79x = 378,743.21 × 147,240.95 - Step 4: Simplify right side
252,495.79x = 55,766,509,310.24 - Step 5: Solve for x
x = 55,766,509,310.24/252,495.79 - Step 6: Final answer
x = 220,861.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.