Finding the Fourth Proportional to 351,383.79, 484,917.80 and 198,471.18
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Solution
The fourth proportional to 351,383.79, 484,917.80 and 198,471.18 is: 273,894.84
Step by Step Solution
- Step 1: Write the proportion equation
351,383.79 : 484,917.80 = 198,471.18 : x - Step 2: Convert to fraction form
351,383.79/484,917.80 = 198,471.18/x - Step 3: Cross multiply
351,383.79x = 484,917.80 × 198,471.18 - Step 4: Simplify right side
351,383.79x = 96,242,206,976.65 - Step 5: Solve for x
x = 96,242,206,976.65/351,383.79 - Step 6: Final answer
x = 273,894.84
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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.