Finding the Fourth Proportional to 214,624.68, 321,864.12 and 74,350.56
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Solution
The fourth proportional to 214,624.68, 321,864.12 and 74,350.56 is: 111,500.59
Step by Step Solution
- Step 1: Write the proportion equation
214,624.68 : 321,864.12 = 74,350.56 : x - Step 2: Convert to fraction form
214,624.68/321,864.12 = 74,350.56/x - Step 3: Cross multiply
214,624.68x = 321,864.12 × 74,350.56 - Step 4: Simplify right side
214,624.68x = 23,930,777,565.91 - Step 5: Solve for x
x = 23,930,777,565.91/214,624.68 - Step 6: Final answer
x = 111,500.59
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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.