Finding the Fourth Proportional to 212,976.05, 319,295.39 and 106,305.12
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Solution
The fourth proportional to 212,976.05, 319,295.39 and 106,305.12 is: 159,373.48
Step by Step Solution
- Step 1: Write the proportion equation
212,976.05 : 319,295.39 = 106,305.12 : x - Step 2: Convert to fraction form
212,976.05/319,295.39 = 106,305.12/x - Step 3: Cross multiply
212,976.05x = 319,295.39 × 106,305.12 - Step 4: Simplify right side
212,976.05x = 33,942,734,217.87 - Step 5: Solve for x
x = 33,942,734,217.87/212,976.05 - Step 6: Final answer
x = 159,373.48
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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.