Finding the Fourth Proportional to 290,107.20, 435,230.40 and 121,534.08
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Solution
The fourth proportional to 290,107.20, 435,230.40 and 121,534.08 is: 182,330.28
Step by Step Solution
- Step 1: Write the proportion equation
290,107.20 : 435,230.40 = 121,534.08 : x - Step 2: Convert to fraction form
290,107.20/435,230.40 = 121,534.08/x - Step 3: Cross multiply
290,107.20x = 435,230.40 × 121,534.08 - Step 4: Simplify right side
290,107.20x = 52,895,326,252.03 - Step 5: Solve for x
x = 52,895,326,252.03/290,107.20 - Step 6: Final answer
x = 182,330.28
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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.