Finding the Fourth Proportional to 290,014.31, 435,193.68 and 156,891.62
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Solution
The fourth proportional to 290,014.31, 435,193.68 and 156,891.62 is: 235,430.59
Step by Step Solution
- Step 1: Write the proportion equation
290,014.31 : 435,193.68 = 156,891.62 : x - Step 2: Convert to fraction form
290,014.31/435,193.68 = 156,891.62/x - Step 3: Cross multiply
290,014.31x = 435,193.68 × 156,891.62 - Step 4: Simplify right side
290,014.31x = 68,278,239,292.99 - Step 5: Solve for x
x = 68,278,239,292.99/290,014.31 - Step 6: Final answer
x = 235,430.59
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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.