Finding the Fourth Proportional to 328,778.06, 493,163.66 and 104,138.42
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Solution
The fourth proportional to 328,778.06, 493,163.66 and 104,138.42 is: 156,206.54
Step by Step Solution
- Step 1: Write the proportion equation
328,778.06 : 493,163.66 = 104,138.42 : x - Step 2: Convert to fraction form
328,778.06/493,163.66 = 104,138.42/x - Step 3: Cross multiply
328,778.06x = 493,163.66 × 104,138.42 - Step 4: Simplify right side
328,778.06x = 51,357,282,148.34 - Step 5: Solve for x
x = 51,357,282,148.34/328,778.06 - Step 6: Final answer
x = 156,206.54
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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.