Finding the Fourth Proportional to 385,910.10, 577,620.99 and 198,664.02
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Solution
The fourth proportional to 385,910.10, 577,620.99 and 198,664.02 is: 297,355.54
Step by Step Solution
- Step 1: Write the proportion equation
385,910.10 : 577,620.99 = 198,664.02 : x - Step 2: Convert to fraction form
385,910.10/577,620.99 = 198,664.02/x - Step 3: Cross multiply
385,910.10x = 577,620.99 × 198,664.02 - Step 4: Simplify right side
385,910.10x = 114,752,507,909.78 - Step 5: Solve for x
x = 114,752,507,909.78/385,910.10 - Step 6: Final answer
x = 297,355.54
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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.