Finding the Fourth Proportional to 422,203.26, 582,641.38 and 228,613.08
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Solution
The fourth proportional to 422,203.26, 582,641.38 and 228,613.08 is: 315,486.52
Step by Step Solution
- Step 1: Write the proportion equation
422,203.26 : 582,641.38 = 228,613.08 : x - Step 2: Convert to fraction form
422,203.26/582,641.38 = 228,613.08/x - Step 3: Cross multiply
422,203.26x = 582,641.38 × 228,613.08 - Step 4: Simplify right side
422,203.26x = 133,199,436,932.51 - Step 5: Solve for x
x = 133,199,436,932.51/422,203.26 - Step 6: Final answer
x = 315,486.52
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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.