Finding the Fourth Proportional to 426,563.20, 639,352.68 and 160,153.75
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Solution
The fourth proportional to 426,563.20, 639,352.68 and 160,153.75 is: 240,045.86
Step by Step Solution
- Step 1: Write the proportion equation
426,563.20 : 639,352.68 = 160,153.75 : x - Step 2: Convert to fraction form
426,563.20/639,352.68 = 160,153.75/x - Step 3: Cross multiply
426,563.20x = 639,352.68 × 160,153.75 - Step 4: Simplify right side
426,563.20x = 102,394,729,274.55 - Step 5: Solve for x
x = 102,394,729,274.55/426,563.20 - Step 6: Final answer
x = 240,045.86
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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.