Finding the Fourth Proportional to 171,405.20, 257,107.80 and 168,489.20
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Solution
The fourth proportional to 171,405.20, 257,107.80 and 168,489.20 is: 252,733.80
Step by Step Solution
- Step 1: Write the proportion equation
171,405.20 : 257,107.80 = 168,489.20 : x - Step 2: Convert to fraction form
171,405.20/257,107.80 = 168,489.20/x - Step 3: Cross multiply
171,405.20x = 257,107.80 × 168,489.20 - Step 4: Simplify right side
171,405.20x = 43,319,887,535.76 - Step 5: Solve for x
x = 43,319,887,535.76/171,405.20 - Step 6: Final answer
x = 252,733.80
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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.