Finding the Fourth Proportional to 208,519.08, 287,756.84 and 113,025.68
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Solution
The fourth proportional to 208,519.08, 287,756.84 and 113,025.68 is: 155,975.71
Step by Step Solution
- Step 1: Write the proportion equation
208,519.08 : 287,756.84 = 113,025.68 : x - Step 2: Convert to fraction form
208,519.08/287,756.84 = 113,025.68/x - Step 3: Cross multiply
208,519.08x = 287,756.84 × 113,025.68 - Step 4: Simplify right side
208,519.08x = 32,523,912,515.65 - Step 5: Solve for x
x = 32,523,912,515.65/208,519.08 - Step 6: Final answer
x = 155,975.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.