Finding the Fourth Proportional to 214,365.76, 321,626.64 and 74,138.56
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Solution
The fourth proportional to 214,365.76, 321,626.64 and 74,138.56 is: 111,234.82
Step by Step Solution
- Step 1: Write the proportion equation
214,365.76 : 321,626.64 = 74,138.56 : x - Step 2: Convert to fraction form
214,365.76/321,626.64 = 74,138.56/x - Step 3: Cross multiply
214,365.76x = 321,626.64 × 74,138.56 - Step 4: Simplify right side
214,365.76x = 23,844,935,947.24 - Step 5: Solve for x
x = 23,844,935,947.24/214,365.76 - Step 6: Final answer
x = 111,234.82
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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.