Finding the Fourth Proportional to 326,153.98, 450,141.69 and 198,903.39
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Solution
The fourth proportional to 326,153.98, 450,141.69 and 198,903.39 is: 274,516.68
Step by Step Solution
- Step 1: Write the proportion equation
326,153.98 : 450,141.69 = 198,903.39 : x - Step 2: Convert to fraction form
326,153.98/450,141.69 = 198,903.39/x - Step 3: Cross multiply
326,153.98x = 450,141.69 × 198,903.39 - Step 4: Simplify right side
326,153.98x = 89,534,708,121.33 - Step 5: Solve for x
x = 89,534,708,121.33/326,153.98 - Step 6: Final answer
x = 274,516.68
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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.