Finding the Fourth Proportional to 351,733.23, 485,416.49 and 198,785.55
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Solution
The fourth proportional to 351,733.23, 485,416.49 and 198,785.55 is: 274,337.98
Step by Step Solution
- Step 1: Write the proportion equation
351,733.23 : 485,416.49 = 198,785.55 : x - Step 2: Convert to fraction form
351,733.23/485,416.49 = 198,785.55/x - Step 3: Cross multiply
351,733.23x = 485,416.49 × 198,785.55 - Step 4: Simplify right side
351,733.23x = 96,493,783,943.72 - Step 5: Solve for x
x = 96,493,783,943.72/351,733.23 - Step 6: Final answer
x = 274,337.98
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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.