Finding the Fourth Proportional to 208,576.20, 287,817.42 and 117,919.58
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Solution
The fourth proportional to 208,576.20, 287,817.42 and 117,919.58 is: 162,718.99
Step by Step Solution
- Step 1: Write the proportion equation
208,576.20 : 287,817.42 = 117,919.58 : x - Step 2: Convert to fraction form
208,576.20/287,817.42 = 117,919.58/x - Step 3: Cross multiply
208,576.20x = 287,817.42 × 117,919.58 - Step 4: Simplify right side
208,576.20x = 33,939,309,283.08 - Step 5: Solve for x
x = 33,939,309,283.08/208,576.20 - Step 6: Final answer
x = 162,718.99
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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.