Finding the Fourth Proportional to 208,986.08, 288,396.05 and 113,490.72
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Solution
The fourth proportional to 208,986.08, 288,396.05 and 113,490.72 is: 156,614.62
Step by Step Solution
- Step 1: Write the proportion equation
208,986.08 : 288,396.05 = 113,490.72 : x - Step 2: Convert to fraction form
208,986.08/288,396.05 = 113,490.72/x - Step 3: Cross multiply
208,986.08x = 288,396.05 × 113,490.72 - Step 4: Simplify right side
208,986.08x = 32,730,274,792.20 - Step 5: Solve for x
x = 32,730,274,792.20/208,986.08 - Step 6: Final answer
x = 156,614.62
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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.