Finding the Fourth Proportional to 328,761.66, 493,137.12 and 104,121.75
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Solution
The fourth proportional to 328,761.66, 493,137.12 and 104,121.75 is: 156,180.92
Step by Step Solution
- Step 1: Write the proportion equation
328,761.66 : 493,137.12 = 104,121.75 : x - Step 2: Convert to fraction form
328,761.66/493,137.12 = 104,121.75/x - Step 3: Cross multiply
328,761.66x = 493,137.12 × 104,121.75 - Step 4: Simplify right side
328,761.66x = 51,346,299,924.36 - Step 5: Solve for x
x = 51,346,299,924.36/328,761.66 - Step 6: Final answer
x = 156,180.92
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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.