Finding the Fourth Proportional to 389,550.20, 537,579.79 and 219,800.12
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Solution
The fourth proportional to 389,550.20, 537,579.79 and 219,800.12 is: 303,324.45
Step by Step Solution
- Step 1: Write the proportion equation
389,550.20 : 537,579.79 = 219,800.12 : x - Step 2: Convert to fraction form
389,550.20/537,579.79 = 219,800.12/x - Step 3: Cross multiply
389,550.20x = 537,579.79 × 219,800.12 - Step 4: Simplify right side
389,550.20x = 118,160,099,114.18 - Step 5: Solve for x
x = 118,160,099,114.18/389,550.20 - Step 6: Final answer
x = 303,324.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.