Finding the Fourth Proportional to 199,539.76, 299,080.20 and 87,193.84
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Solution
The fourth proportional to 199,539.76, 299,080.20 and 87,193.84 is: 130,690.50
Step by Step Solution
- Step 1: Write the proportion equation
199,539.76 : 299,080.20 = 87,193.84 : x - Step 2: Convert to fraction form
199,539.76/299,080.20 = 87,193.84/x - Step 3: Cross multiply
199,539.76x = 299,080.20 × 87,193.84 - Step 4: Simplify right side
199,539.76x = 26,077,951,105.97 - Step 5: Solve for x
x = 26,077,951,105.97/199,539.76 - Step 6: Final answer
x = 130,690.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.