Finding the Fourth Proportional to 287,418.24, 396,517.95 and 171,107.91
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Solution
The fourth proportional to 287,418.24, 396,517.95 and 171,107.91 is: 236,057.94
Step by Step Solution
- Step 1: Write the proportion equation
287,418.24 : 396,517.95 = 171,107.91 : x - Step 2: Convert to fraction form
287,418.24/396,517.95 = 171,107.91/x - Step 3: Cross multiply
287,418.24x = 396,517.95 × 171,107.91 - Step 4: Simplify right side
287,418.24x = 67,847,357,701.98 - Step 5: Solve for x
x = 67,847,357,701.98/287,418.24 - Step 6: Final answer
x = 236,057.94
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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.