Finding the Fourth Proportional to 352,128.30, 485,948.05 and 199,163.49
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Solution
The fourth proportional to 352,128.30, 485,948.05 and 199,163.49 is: 274,851.84
Step by Step Solution
- Step 1: Write the proportion equation
352,128.30 : 485,948.05 = 199,163.49 : x - Step 2: Convert to fraction form
352,128.30/485,948.05 = 199,163.49/x - Step 3: Cross multiply
352,128.30x = 485,948.05 × 199,163.49 - Step 4: Simplify right side
352,128.30x = 96,783,110,866.33 - Step 5: Solve for x
x = 96,783,110,866.33/352,128.30 - Step 6: Final answer
x = 274,851.84
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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.