Finding the Fourth Proportional to 351,708.38, 485,378.08 and 198,742.68
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Solution
The fourth proportional to 351,708.38, 485,378.08 and 198,742.68 is: 274,276.49
Step by Step Solution
- Step 1: Write the proportion equation
351,708.38 : 485,378.08 = 198,742.68 : x - Step 2: Convert to fraction form
351,708.38/485,378.08 = 198,742.68/x - Step 3: Cross multiply
351,708.38x = 485,378.08 × 198,742.68 - Step 4: Simplify right side
351,708.38x = 96,465,340,432.45 - Step 5: Solve for x
x = 96,465,340,432.45/351,708.38 - Step 6: Final answer
x = 274,276.49
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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.