Finding the Fourth Proportional to 438,919.68, 605,721.60 and 247,941.12
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Solution
The fourth proportional to 438,919.68, 605,721.60 and 247,941.12 is: 342,165.77
Step by Step Solution
- Step 1: Write the proportion equation
438,919.68 : 605,721.60 = 247,941.12 : x - Step 2: Convert to fraction form
438,919.68/605,721.60 = 247,941.12/x - Step 3: Cross multiply
438,919.68x = 605,721.60 × 247,941.12 - Step 4: Simplify right side
438,919.68x = 150,183,291,912.19 - Step 5: Solve for x
x = 150,183,291,912.19/438,919.68 - Step 6: Final answer
x = 342,165.77
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.