Finding the Fourth Proportional to 288,642.06, 398,326.62 and 161,317.65
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Solution
The fourth proportional to 288,642.06, 398,326.62 and 161,317.65 is: 222,618.68
Step by Step Solution
- Step 1: Write the proportion equation
288,642.06 : 398,326.62 = 161,317.65 : x - Step 2: Convert to fraction form
288,642.06/398,326.62 = 161,317.65/x - Step 3: Cross multiply
288,642.06x = 398,326.62 × 161,317.65 - Step 4: Simplify right side
288,642.06x = 64,257,114,270.84 - Step 5: Solve for x
x = 64,257,114,270.84/288,642.06 - Step 6: Final answer
x = 222,618.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.