Finding the Fourth Proportional to 197,043.75, 271,926.87 and 107,619.75
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Solution
The fourth proportional to 197,043.75, 271,926.87 and 107,619.75 is: 148,518.80
Step by Step Solution
- Step 1: Write the proportion equation
197,043.75 : 271,926.87 = 107,619.75 : x - Step 2: Convert to fraction form
197,043.75/271,926.87 = 107,619.75/x - Step 3: Cross multiply
197,043.75x = 271,926.87 × 107,619.75 - Step 4: Simplify right side
197,043.75x = 29,264,701,767.68 - Step 5: Solve for x
x = 29,264,701,767.68/197,043.75 - Step 6: Final answer
x = 148,518.80
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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.