Finding the Fourth Proportional to 257,107.14, 354,828.33 and 189,433.26
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Solution
The fourth proportional to 257,107.14, 354,828.33 and 189,433.26 is: 261,432.99
Step by Step Solution
- Step 1: Write the proportion equation
257,107.14 : 354,828.33 = 189,433.26 : x - Step 2: Convert to fraction form
257,107.14/354,828.33 = 189,433.26/x - Step 3: Cross multiply
257,107.14x = 354,828.33 × 189,433.26 - Step 4: Simplify right side
257,107.14x = 67,216,287,292.26 - Step 5: Solve for x
x = 67,216,287,292.26/257,107.14 - Step 6: Final answer
x = 261,432.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.