Finding the Fourth Proportional to 296,879.36, 445,472.16 and 139,123.84
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Solution
The fourth proportional to 296,879.36, 445,472.16 and 139,123.84 is: 208,757.52
Step by Step Solution
- Step 1: Write the proportion equation
296,879.36 : 445,472.16 = 139,123.84 : x - Step 2: Convert to fraction form
296,879.36/445,472.16 = 139,123.84/x - Step 3: Cross multiply
296,879.36x = 445,472.16 × 139,123.84 - Step 4: Simplify right side
296,879.36x = 61,975,797,512.29 - Step 5: Solve for x
x = 61,975,797,512.29/296,879.36 - Step 6: Final answer
x = 208,757.52
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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.