Finding the Fourth Proportional to 208,243.08, 287,375.62 and 112,749.80
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Solution
The fourth proportional to 208,243.08, 287,375.62 and 112,749.80 is: 155,594.82
Step by Step Solution
- Step 1: Write the proportion equation
208,243.08 : 287,375.62 = 112,749.80 : x - Step 2: Convert to fraction form
208,243.08/287,375.62 = 112,749.80/x - Step 3: Cross multiply
208,243.08x = 287,375.62 × 112,749.80 - Step 4: Simplify right side
208,243.08x = 32,401,543,679.88 - Step 5: Solve for x
x = 32,401,543,679.88/208,243.08 - Step 6: Final answer
x = 155,594.82
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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.