Finding the Fourth Proportional to 331,467.80, 497,201.70 and 144,843.80
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Solution
The fourth proportional to 331,467.80, 497,201.70 and 144,843.80 is: 217,265.70
Step by Step Solution
- Step 1: Write the proportion equation
331,467.80 : 497,201.70 = 144,843.80 : x - Step 2: Convert to fraction form
331,467.80/497,201.70 = 144,843.80/x - Step 3: Cross multiply
331,467.80x = 497,201.70 × 144,843.80 - Step 4: Simplify right side
331,467.80x = 72,016,583,594.46 - Step 5: Solve for x
x = 72,016,583,594.46/331,467.80 - Step 6: Final answer
x = 217,265.70
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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.