Finding the Fourth Proportional to 448,099.36, 618,391.12 and 257,147.68
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Solution
The fourth proportional to 448,099.36, 618,391.12 and 257,147.68 is: 354,871.83
Step by Step Solution
- Step 1: Write the proportion equation
448,099.36 : 618,391.12 = 257,147.68 : x - Step 2: Convert to fraction form
448,099.36/618,391.12 = 257,147.68/x - Step 3: Cross multiply
448,099.36x = 618,391.12 × 257,147.68 - Step 4: Simplify right side
448,099.36x = 159,017,841,840.60 - Step 5: Solve for x
x = 159,017,841,840.60/448,099.36 - Step 6: Final answer
x = 354,871.83
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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.