Finding the Fourth Proportional to 323,134.11, 445,634.76 and 202,286.40
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Solution
The fourth proportional to 323,134.11, 445,634.76 and 202,286.40 is: 278,973.49
Step by Step Solution
- Step 1: Write the proportion equation
323,134.11 : 445,634.76 = 202,286.40 : x - Step 2: Convert to fraction form
323,134.11/445,634.76 = 202,286.40/x - Step 3: Cross multiply
323,134.11x = 445,634.76 × 202,286.40 - Step 4: Simplify right side
323,134.11x = 90,145,851,315.26 - Step 5: Solve for x
x = 90,145,851,315.26/323,134.11 - Step 6: Final answer
x = 278,973.49
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1.5x scale
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.