Finding the Fourth Proportional to 438,450.69, 605,163.05 and 257,220.84
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Solution
The fourth proportional to 438,450.69, 605,163.05 and 257,220.84 is: 355,024.07
Step by Step Solution
- Step 1: Write the proportion equation
438,450.69 : 605,163.05 = 257,220.84 : x - Step 2: Convert to fraction form
438,450.69/605,163.05 = 257,220.84/x - Step 3: Cross multiply
438,450.69x = 605,163.05 × 257,220.84 - Step 4: Simplify right side
438,450.69x = 155,660,548,057.96 - Step 5: Solve for x
x = 155,660,548,057.96/438,450.69 - Step 6: Final answer
x = 355,024.07
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1.5x scale
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.