Finding the Fourth Proportional to 171,687.70, 257,531.55 and 168,771.70
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Solution
The fourth proportional to 171,687.70, 257,531.55 and 168,771.70 is: 253,157.55
Step by Step Solution
- Step 1: Write the proportion equation
171,687.70 : 257,531.55 = 168,771.70 : x - Step 2: Convert to fraction form
171,687.70/257,531.55 = 168,771.70/x - Step 3: Cross multiply
171,687.70x = 257,531.55 × 168,771.70 - Step 4: Simplify right side
171,687.70x = 43,464,037,497.14 - Step 5: Solve for x
x = 43,464,037,497.14/171,687.70 - Step 6: Final answer
x = 253,157.55
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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.