Finding the Fourth Proportional to 328,871.49, 493,310.96 and 115,645.74
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Solution
The fourth proportional to 328,871.49, 493,310.96 and 115,645.74 is: 173,469.92
Step by Step Solution
- Step 1: Write the proportion equation
328,871.49 : 493,310.96 = 115,645.74 : x - Step 2: Convert to fraction form
328,871.49/493,310.96 = 115,645.74/x - Step 3: Cross multiply
328,871.49x = 493,310.96 × 115,645.74 - Step 4: Simplify right side
328,871.49x = 57,049,310,441.08 - Step 5: Solve for x
x = 57,049,310,441.08/328,871.49 - Step 6: Final answer
x = 173,469.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.