Finding the Fourth Proportional to 343,402.80, 515,055.60 and 106,769.40
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Solution
The fourth proportional to 343,402.80, 515,055.60 and 106,769.40 is: 160,138.99
Step by Step Solution
- Step 1: Write the proportion equation
343,402.80 : 515,055.60 = 106,769.40 : x - Step 2: Convert to fraction form
343,402.80/515,055.60 = 106,769.40/x - Step 3: Cross multiply
343,402.80x = 515,055.60 × 106,769.40 - Step 4: Simplify right side
343,402.80x = 54,992,177,378.64 - Step 5: Solve for x
x = 54,992,177,378.64/343,402.80 - Step 6: Final answer
x = 160,138.99
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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.