Finding the Fourth Proportional to 331,922.80, 497,884.20 and 219,729.70
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Solution
The fourth proportional to 331,922.80, 497,884.20 and 219,729.70 is: 329,594.55
Step by Step Solution
- Step 1: Write the proportion equation
331,922.80 : 497,884.20 = 219,729.70 : x - Step 2: Convert to fraction form
331,922.80/497,884.20 = 219,729.70/x - Step 3: Cross multiply
331,922.80x = 497,884.20 × 219,729.70 - Step 4: Simplify right side
331,922.80x = 109,399,945,900.74 - Step 5: Solve for x
x = 109,399,945,900.74/331,922.80 - Step 6: Final answer
x = 329,594.55
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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.