Finding the Fourth Proportional to 208,861.36, 288,228.90 and 113,368.02
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Solution
The fourth proportional to 208,861.36, 288,228.90 and 113,368.02 is: 156,447.99
Step by Step Solution
- Step 1: Write the proportion equation
208,861.36 : 288,228.90 = 113,368.02 : x - Step 2: Convert to fraction form
208,861.36/288,228.90 = 113,368.02/x - Step 3: Cross multiply
208,861.36x = 288,228.90 × 113,368.02 - Step 4: Simplify right side
208,861.36x = 32,675,939,699.78 - Step 5: Solve for x
x = 32,675,939,699.78/208,861.36 - Step 6: Final answer
x = 156,447.99
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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.