Finding the Fourth Proportional to 438,918.68, 605,720.22 and 247,940.12
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Solution
The fourth proportional to 438,918.68, 605,720.22 and 247,940.12 is: 342,164.39
Step by Step Solution
- Step 1: Write the proportion equation
438,918.68 : 605,720.22 = 247,940.12 : x - Step 2: Convert to fraction form
438,918.68/605,720.22 = 247,940.12/x - Step 3: Cross multiply
438,918.68x = 605,720.22 × 247,940.12 - Step 4: Simplify right side
438,918.68x = 150,182,344,033.23 - Step 5: Solve for x
x = 150,182,344,033.23/438,918.68 - Step 6: Final answer
x = 342,164.39
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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.