Finding the Fourth Proportional to 236,631.51, 326,537.01 and 129,195.09
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Solution
The fourth proportional to 236,631.51, 326,537.01 and 129,195.09 is: 178,281.32
Step by Step Solution
- Step 1: Write the proportion equation
236,631.51 : 326,537.01 = 129,195.09 : x - Step 2: Convert to fraction form
236,631.51/326,537.01 = 129,195.09/x - Step 3: Cross multiply
236,631.51x = 326,537.01 × 129,195.09 - Step 4: Simplify right side
236,631.51x = 42,186,978,395.28 - Step 5: Solve for x
x = 42,186,978,395.28/236,631.51 - Step 6: Final answer
x = 178,281.32
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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.