Finding the Fourth Proportional to 196,687.70, 295,153.05 and 78,346.70
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Solution
The fourth proportional to 196,687.70, 295,153.05 and 78,346.70 is: 117,568.45
Step by Step Solution
- Step 1: Write the proportion equation
196,687.70 : 295,153.05 = 78,346.70 : x - Step 2: Convert to fraction form
196,687.70/295,153.05 = 78,346.70/x - Step 3: Cross multiply
196,687.70x = 295,153.05 × 78,346.70 - Step 4: Simplify right side
196,687.70x = 23,124,267,462.44 - Step 5: Solve for x
x = 23,124,267,462.44/196,687.70 - Step 6: Final answer
x = 117,568.45
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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.