Finding the Fourth Proportional to 286,106.92, 394,787.16 and 171,358.68
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Solution
The fourth proportional to 286,106.92, 394,787.16 and 171,358.68 is: 236,450.79
Step by Step Solution
- Step 1: Write the proportion equation
286,106.92 : 394,787.16 = 171,358.68 : x - Step 2: Convert to fraction form
286,106.92/394,787.16 = 171,358.68/x - Step 3: Cross multiply
286,106.92x = 394,787.16 × 171,358.68 - Step 4: Simplify right side
286,106.92x = 67,650,206,618.55 - Step 5: Solve for x
x = 67,650,206,618.55/286,106.92 - Step 6: Final answer
x = 236,450.79
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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.