Finding the Fourth Proportional to 319,371.99, 479,138.54 and 106,141.02
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Solution
The fourth proportional to 319,371.99, 479,138.54 and 106,141.02 is: 159,238.30
Step by Step Solution
- Step 1: Write the proportion equation
319,371.99 : 479,138.54 = 106,141.02 : x - Step 2: Convert to fraction form
319,371.99/479,138.54 = 106,141.02/x - Step 3: Cross multiply
319,371.99x = 479,138.54 × 106,141.02 - Step 4: Simplify right side
319,371.99x = 50,856,251,029.44 - Step 5: Solve for x
x = 50,856,251,029.44/319,371.99 - Step 6: Final answer
x = 159,238.30
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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.