Finding the Fourth Proportional to 208,473.84, 312,707.70 and 66,327.75
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Solution
The fourth proportional to 208,473.84, 312,707.70 and 66,327.75 is: 99,490.65
Step by Step Solution
- Step 1: Write the proportion equation
208,473.84 : 312,707.70 = 66,327.75 : x - Step 2: Convert to fraction form
208,473.84/312,707.70 = 66,327.75/x - Step 3: Cross multiply
208,473.84x = 312,707.70 × 66,327.75 - Step 4: Simplify right side
208,473.84x = 20,741,198,148.68 - Step 5: Solve for x
x = 20,741,198,148.68/208,473.84 - Step 6: Final answer
x = 99,490.65
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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.