Finding the Fourth Proportional to 257,176.09, 354,890.67 and 142,446.97
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Solution
The fourth proportional to 257,176.09, 354,890.67 and 142,446.97 is: 196,569.99
Step by Step Solution
- Step 1: Write the proportion equation
257,176.09 : 354,890.67 = 142,446.97 : x - Step 2: Convert to fraction form
257,176.09/354,890.67 = 142,446.97/x - Step 3: Cross multiply
257,176.09x = 354,890.67 × 142,446.97 - Step 4: Simplify right side
257,176.09x = 50,553,100,622.77 - Step 5: Solve for x
x = 50,553,100,622.77/257,176.09 - Step 6: Final answer
x = 196,569.99
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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.