Finding the Fourth Proportional to 214,674.63, 321,990.08 and 56,919.03
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Solution
The fourth proportional to 214,674.63, 321,990.08 and 56,919.03 is: 85,372.75
Step by Step Solution
- Step 1: Write the proportion equation
214,674.63 : 321,990.08 = 56,919.03 : x - Step 2: Convert to fraction form
214,674.63/321,990.08 = 56,919.03/x - Step 3: Cross multiply
214,674.63x = 321,990.08 × 56,919.03 - Step 4: Simplify right side
214,674.63x = 18,327,362,738.63 - Step 5: Solve for x
x = 18,327,362,738.63/214,674.63 - Step 6: Final answer
x = 85,372.75
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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.