Finding the Fourth Proportional to 448,203.88, 618,514.26 and 257,212.84
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Solution
The fourth proportional to 448,203.88, 618,514.26 and 257,212.84 is: 354,949.65
Step by Step Solution
- Step 1: Write the proportion equation
448,203.88 : 618,514.26 = 257,212.84 : x - Step 2: Convert to fraction form
448,203.88/618,514.26 = 257,212.84/x - Step 3: Cross multiply
448,203.88x = 618,514.26 × 257,212.84 - Step 4: Simplify right side
448,203.88x = 159,089,809,395.10 - Step 5: Solve for x
x = 159,089,809,395.10/448,203.88 - Step 6: Final answer
x = 354,949.65
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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.