Finding the Fourth Proportional to 427,367.49, 641,198.66 and 161,204.19
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Solution
The fourth proportional to 427,367.49, 641,198.66 and 161,204.19 is: 241,861.89
Step by Step Solution
- Step 1: Write the proportion equation
427,367.49 : 641,198.66 = 161,204.19 : x - Step 2: Convert to fraction form
427,367.49/641,198.66 = 161,204.19/x - Step 3: Cross multiply
427,367.49x = 641,198.66 × 161,204.19 - Step 4: Simplify right side
427,367.49x = 103,363,909,808.36 - Step 5: Solve for x
x = 103,363,909,808.36/427,367.49 - Step 6: Final answer
x = 241,861.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.