Finding the Fourth Proportional to 236,837.12, 326,857.92 and 129,423.44
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Solution
The fourth proportional to 236,837.12, 326,857.92 and 129,423.44 is: 178,616.75
Step by Step Solution
- Step 1: Write the proportion equation
236,837.12 : 326,857.92 = 129,423.44 : x - Step 2: Convert to fraction form
236,837.12/326,857.92 = 129,423.44/x - Step 3: Cross multiply
236,837.12x = 326,857.92 × 129,423.44 - Step 4: Simplify right side
236,837.12x = 42,303,076,397.64 - Step 5: Solve for x
x = 42,303,076,397.64/236,837.12 - Step 6: Final answer
x = 178,616.75
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1.5x scale
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.