Finding the Fourth Proportional to 193,299.96, 289,880.41 and 66,905.88
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Solution
The fourth proportional to 193,299.96, 289,880.41 and 66,905.88 is: 100,334.75
Step by Step Solution
- Step 1: Write the proportion equation
193,299.96 : 289,880.41 = 66,905.88 : x - Step 2: Convert to fraction form
193,299.96/289,880.41 = 66,905.88/x - Step 3: Cross multiply
193,299.96x = 289,880.41 × 66,905.88 - Step 4: Simplify right side
193,299.96x = 19,394,703,925.81 - Step 5: Solve for x
x = 19,394,703,925.81/193,299.96 - Step 6: Final answer
x = 100,334.75
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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.