Finding the Fourth Proportional to 351,917.32, 485,639.94 and 198,953.14
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Solution
The fourth proportional to 351,917.32, 485,639.94 and 198,953.14 is: 274,551.96
Step by Step Solution
- Step 1: Write the proportion equation
351,917.32 : 485,639.94 = 198,953.14 : x - Step 2: Convert to fraction form
351,917.32/485,639.94 = 198,953.14/x - Step 3: Cross multiply
351,917.32x = 485,639.94 × 198,953.14 - Step 4: Simplify right side
351,917.32x = 96,619,590,972.41 - Step 5: Solve for x
x = 96,619,590,972.41/351,917.32 - Step 6: Final answer
x = 274,551.96
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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.