Finding the Fourth Proportional to 171,861.44, 257,791.68 and 47,202.56
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Solution
The fourth proportional to 171,861.44, 257,791.68 and 47,202.56 is: 70,803.71
Step by Step Solution
- Step 1: Write the proportion equation
171,861.44 : 257,791.68 = 47,202.56 : x - Step 2: Convert to fraction form
171,861.44/257,791.68 = 47,202.56/x - Step 3: Cross multiply
171,861.44x = 257,791.68 × 47,202.56 - Step 4: Simplify right side
171,861.44x = 12,168,427,242.70 - Step 5: Solve for x
x = 12,168,427,242.70/171,861.44 - Step 6: Final answer
x = 70,803.71
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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.