Finding the Fourth Proportional to 263,620.20, 395,430.30 and 121,465.20
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Solution
The fourth proportional to 263,620.20, 395,430.30 and 121,465.20 is: 182,197.80
Step by Step Solution
- Step 1: Write the proportion equation
263,620.20 : 395,430.30 = 121,465.20 : x - Step 2: Convert to fraction form
263,620.20/395,430.30 = 121,465.20/x - Step 3: Cross multiply
263,620.20x = 395,430.30 × 121,465.20 - Step 4: Simplify right side
263,620.20x = 48,031,020,475.56 - Step 5: Solve for x
x = 48,031,020,475.56/263,620.20 - Step 6: Final answer
x = 182,197.80
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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.