Finding the Fourth Proportional to 351,959.41, 485,697.63 and 198,994.96
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Solution
The fourth proportional to 351,959.41, 485,697.63 and 198,994.96 is: 274,609.45
Step by Step Solution
- Step 1: Write the proportion equation
351,959.41 : 485,697.63 = 198,994.96 : x - Step 2: Convert to fraction form
351,959.41/485,697.63 = 198,994.96/x - Step 3: Cross multiply
351,959.41x = 485,697.63 × 198,994.96 - Step 4: Simplify right side
351,959.41x = 96,651,380,453.94 - Step 5: Solve for x
x = 96,651,380,453.94/351,959.41 - Step 6: Final answer
x = 274,609.45
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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.