Finding the Fourth Proportional to 343,911.09, 515,894.28 and 130,780.92
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Solution
The fourth proportional to 343,911.09, 515,894.28 and 130,780.92 is: 196,181.89
Step by Step Solution
- Step 1: Write the proportion equation
343,911.09 : 515,894.28 = 130,780.92 : x - Step 2: Convert to fraction form
343,911.09/515,894.28 = 130,780.92/x - Step 3: Cross multiply
343,911.09x = 515,894.28 × 130,780.92 - Step 4: Simplify right side
343,911.09x = 67,469,128,561.14 - Step 5: Solve for x
x = 67,469,128,561.14/343,911.09 - Step 6: Final answer
x = 196,181.89
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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.