Finding the Fourth Proportional to 431,452.96, 647,380.08 and 165,125.68
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Solution
The fourth proportional to 431,452.96, 647,380.08 and 165,125.68 is: 247,765.31
Step by Step Solution
- Step 1: Write the proportion equation
431,452.96 : 647,380.08 = 165,125.68 : x - Step 2: Convert to fraction form
431,452.96/647,380.08 = 165,125.68/x - Step 3: Cross multiply
431,452.96x = 647,380.08 × 165,125.68 - Step 4: Simplify right side
431,452.96x = 106,899,075,928.45 - Step 5: Solve for x
x = 106,899,075,928.45/431,452.96 - Step 6: Final answer
x = 247,765.31
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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.