Finding the Fourth Proportional to 331,329.70, 496,994.55 and 82,011.70
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Solution
The fourth proportional to 331,329.70, 496,994.55 and 82,011.70 is: 123,017.55
Step by Step Solution
- Step 1: Write the proportion equation
331,329.70 : 496,994.55 = 82,011.70 : x - Step 2: Convert to fraction form
331,329.70/496,994.55 = 82,011.70/x - Step 3: Cross multiply
331,329.70x = 496,994.55 × 82,011.70 - Step 4: Simplify right side
331,329.70x = 40,759,367,936.24 - Step 5: Solve for x
x = 40,759,367,936.24/331,329.70 - Step 6: Final answer
x = 123,017.55
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1.5x scale
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.