Finding the Fourth Proportional to 445,903.20, 668,445.30 and 193,024.44
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Solution
The fourth proportional to 445,903.20, 668,445.30 and 193,024.44 is: 289,359.39
Step by Step Solution
- Step 1: Write the proportion equation
445,903.20 : 668,445.30 = 193,024.44 : x - Step 2: Convert to fraction form
445,903.20/668,445.30 = 193,024.44/x - Step 3: Cross multiply
445,903.20x = 668,445.30 × 193,024.44 - Step 4: Simplify right side
445,903.20x = 129,026,279,703.13 - Step 5: Solve for x
x = 129,026,279,703.13/445,903.20 - Step 6: Final answer
x = 289,359.39
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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.