Finding the Fourth Proportional to 448,338.24, 618,743.79 and 257,388.48
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Solution
The fourth proportional to 448,338.24, 618,743.79 and 257,388.48 is: 355,217.35
Step by Step Solution
- Step 1: Write the proportion equation
448,338.24 : 618,743.79 = 257,388.48 : x - Step 2: Convert to fraction form
448,338.24/618,743.79 = 257,388.48/x - Step 3: Cross multiply
448,338.24x = 618,743.79 × 257,388.48 - Step 4: Simplify right side
448,338.24x = 159,257,523,617.54 - Step 5: Solve for x
x = 159,257,523,617.54/448,338.24 - Step 6: Final answer
x = 355,217.35
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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.