Finding the Fourth Proportional to 290,235.10, 435,387.26 and 140,367.70
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Solution
The fourth proportional to 290,235.10, 435,387.26 and 140,367.70 is: 210,568.28
Step by Step Solution
- Step 1: Write the proportion equation
290,235.10 : 435,387.26 = 140,367.70 : x - Step 2: Convert to fraction form
290,235.10/435,387.26 = 140,367.70/x - Step 3: Cross multiply
290,235.10x = 435,387.26 × 140,367.70 - Step 4: Simplify right side
290,235.10x = 61,114,306,118.57 - Step 5: Solve for x
x = 61,114,306,118.57/290,235.10 - Step 6: Final answer
x = 210,568.28
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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.