Finding the Fourth Proportional to 252,326.70, 378,491.47 and 74,835.05
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Solution
The fourth proportional to 252,326.70, 378,491.47 and 74,835.05 is: 112,252.99
Step by Step Solution
- Step 1: Write the proportion equation
252,326.70 : 378,491.47 = 74,835.05 : x - Step 2: Convert to fraction form
252,326.70/378,491.47 = 74,835.05/x - Step 3: Cross multiply
252,326.70x = 378,491.47 × 74,835.05 - Step 4: Simplify right side
252,326.70x = 28,324,426,002.48 - Step 5: Solve for x
x = 28,324,426,002.48/252,326.70 - Step 6: Final answer
x = 112,252.99
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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.