Finding the Fourth Proportional to 430,589.28, 645,464.88 and 205,891.68
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Solution
The fourth proportional to 430,589.28, 645,464.88 and 205,891.68 is: 308,637.15
Step by Step Solution
- Step 1: Write the proportion equation
430,589.28 : 645,464.88 = 205,891.68 : x - Step 2: Convert to fraction form
430,589.28/645,464.88 = 205,891.68/x - Step 3: Cross multiply
430,589.28x = 645,464.88 × 205,891.68 - Step 4: Simplify right side
430,589.28x = 132,895,848,524.20 - Step 5: Solve for x
x = 132,895,848,524.20/430,589.28 - Step 6: Final answer
x = 308,637.15
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.