Finding the Fourth Proportional to 290,246.90, 435,538.49 and 121,752.18
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Solution
The fourth proportional to 290,246.90, 435,538.49 and 121,752.18 is: 182,698.80
Step by Step Solution
- Step 1: Write the proportion equation
290,246.90 : 435,538.49 = 121,752.18 : x - Step 2: Convert to fraction form
290,246.90/435,538.49 = 121,752.18/x - Step 3: Cross multiply
290,246.90x = 435,538.49 × 121,752.18 - Step 4: Simplify right side
290,246.90x = 53,027,760,022.65 - Step 5: Solve for x
x = 53,027,760,022.65/290,246.90 - Step 6: Final answer
x = 182,698.80
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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.