Finding the Fourth Proportional to 209,984.30, 289,771.11 and 119,338.68
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Solution
The fourth proportional to 209,984.30, 289,771.11 and 119,338.68 is: 164,683.28
Step by Step Solution
- Step 1: Write the proportion equation
209,984.30 : 289,771.11 = 119,338.68 : x - Step 2: Convert to fraction form
209,984.30/289,771.11 = 119,338.68/x - Step 3: Cross multiply
209,984.30x = 289,771.11 × 119,338.68 - Step 4: Simplify right side
209,984.30x = 34,580,901,769.53 - Step 5: Solve for x
x = 34,580,901,769.53/209,984.30 - Step 6: Final answer
x = 164,683.28
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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.