Finding the Fourth Proportional to 290,586.08, 435,067.02 and 156,987.68
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Solution
The fourth proportional to 290,586.08, 435,067.02 and 156,987.68 is: 235,042.79
Step by Step Solution
- Step 1: Write the proportion equation
290,586.08 : 435,067.02 = 156,987.68 : x - Step 2: Convert to fraction form
290,586.08/435,067.02 = 156,987.68/x - Step 3: Cross multiply
290,586.08x = 435,067.02 × 156,987.68 - Step 4: Simplify right side
290,586.08x = 68,300,162,114.31 - Step 5: Solve for x
x = 68,300,162,114.31/290,586.08 - Step 6: Final answer
x = 235,042.79
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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.