Finding the Fourth Proportional to 290,344.20, 434,933.10 and 201,697.80
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Solution
The fourth proportional to 290,344.20, 434,933.10 and 201,697.80 is: 302,141.56
Step by Step Solution
- Step 1: Write the proportion equation
290,344.20 : 434,933.10 = 201,697.80 : x - Step 2: Convert to fraction form
290,344.20/434,933.10 = 201,697.80/x - Step 3: Cross multiply
290,344.20x = 434,933.10 × 201,697.80 - Step 4: Simplify right side
290,344.20x = 87,725,049,417.18 - Step 5: Solve for x
x = 87,725,049,417.18/290,344.20 - Step 6: Final answer
x = 302,141.56
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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.