Finding the Fourth Proportional to 219,311.40, 328,529.70 and 125,707.80
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Solution
The fourth proportional to 219,311.40, 328,529.70 and 125,707.80 is: 188,310.99
Step by Step Solution
- Step 1: Write the proportion equation
219,311.40 : 328,529.70 = 125,707.80 : x - Step 2: Convert to fraction form
219,311.40/328,529.70 = 125,707.80/x - Step 3: Cross multiply
219,311.40x = 328,529.70 × 125,707.80 - Step 4: Simplify right side
219,311.40x = 41,298,745,821.66 - Step 5: Solve for x
x = 41,298,745,821.66/219,311.40 - Step 6: Final answer
x = 188,310.99
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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.