Finding the Fourth Proportional to 335,806.40, 503,272.20 and 135,963.20
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Solution
The fourth proportional to 335,806.40, 503,272.20 and 135,963.20 is: 203,767.70
Step by Step Solution
- Step 1: Write the proportion equation
335,806.40 : 503,272.20 = 135,963.20 : x - Step 2: Convert to fraction form
335,806.40/503,272.20 = 135,963.20/x - Step 3: Cross multiply
335,806.40x = 503,272.20 × 135,963.20 - Step 4: Simplify right side
335,806.40x = 68,426,498,783.04 - Step 5: Solve for x
x = 68,426,498,783.04/335,806.40 - Step 6: Final answer
x = 203,767.70
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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.