Finding the Fourth Proportional to 387,589.19, 581,394.78 and 107,106.44
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Solution
The fourth proportional to 387,589.19, 581,394.78 and 107,106.44 is: 160,662.69
Step by Step Solution
- Step 1: Write the proportion equation
387,589.19 : 581,394.78 = 107,106.44 : x - Step 2: Convert to fraction form
387,589.19/581,394.78 = 107,106.44/x - Step 3: Cross multiply
387,589.19x = 581,394.78 × 107,106.44 - Step 4: Simplify right side
387,589.19x = 62,271,122,213.41 - Step 5: Solve for x
x = 62,271,122,213.41/387,589.19 - Step 6: Final answer
x = 160,662.69
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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.