Finding the Fourth Proportional to 287,370.60, 431,029.30 and 135,532.84
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Solution
The fourth proportional to 287,370.60, 431,029.30 and 135,532.84 is: 203,286.71
Step by Step Solution
- Step 1: Write the proportion equation
287,370.60 : 431,029.30 = 135,532.84 : x - Step 2: Convert to fraction form
287,370.60/431,029.30 = 135,532.84/x - Step 3: Cross multiply
287,370.60x = 431,029.30 × 135,532.84 - Step 4: Simplify right side
287,370.60x = 58,418,625,152.21 - Step 5: Solve for x
x = 58,418,625,152.21/287,370.60 - Step 6: Final answer
x = 203,286.71
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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.