Finding the Fourth Proportional to 351,704.17, 485,322.19 and 198,755.65
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Solution
The fourth proportional to 351,704.17, 485,322.19 and 198,755.65 is: 274,266.09
Step by Step Solution
- Step 1: Write the proportion equation
351,704.17 : 485,322.19 = 198,755.65 : x - Step 2: Convert to fraction form
351,704.17/485,322.19 = 198,755.65/x - Step 3: Cross multiply
351,704.17x = 485,322.19 × 198,755.65 - Step 4: Simplify right side
351,704.17x = 96,460,527,332.87 - Step 5: Solve for x
x = 96,460,527,332.87/351,704.17 - Step 6: Final answer
x = 274,266.09
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1.5x scale
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.