Finding the Fourth Proportional to 508,168.94, 701,274.14 and 278,728.09
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Solution
The fourth proportional to 508,168.94, 701,274.14 and 278,728.09 is: 384,645.31
Step by Step Solution
- Step 1: Write the proportion equation
508,168.94 : 701,274.14 = 278,728.09 : x - Step 2: Convert to fraction form
508,168.94/701,274.14 = 278,728.09/x - Step 3: Cross multiply
508,168.94x = 701,274.14 × 278,728.09 - Step 4: Simplify right side
508,168.94x = 195,464,801,608.59 - Step 5: Solve for x
x = 195,464,801,608.59/508,168.94 - Step 6: Final answer
x = 384,645.31
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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.