Finding the Fourth Proportional to 252,529.94, 378,191.54 and 139,930.88
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Solution
The fourth proportional to 252,529.94, 378,191.54 and 139,930.88 is: 209,561.99
Step by Step Solution
- Step 1: Write the proportion equation
252,529.94 : 378,191.54 = 139,930.88 : x - Step 2: Convert to fraction form
252,529.94/378,191.54 = 139,930.88/x - Step 3: Cross multiply
252,529.94x = 378,191.54 × 139,930.88 - Step 4: Simplify right side
252,529.94x = 52,920,676,296.06 - Step 5: Solve for x
x = 52,920,676,296.06/252,529.94 - Step 6: Final answer
x = 209,561.99
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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.