Finding the Fourth Proportional to 236,175.12, 325,919.52 and 128,745.09
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Solution
The fourth proportional to 236,175.12, 325,919.52 and 128,745.09 is: 177,667.05
Step by Step Solution
- Step 1: Write the proportion equation
236,175.12 : 325,919.52 = 128,745.09 : x - Step 2: Convert to fraction form
236,175.12/325,919.52 = 128,745.09/x - Step 3: Cross multiply
236,175.12x = 325,919.52 × 128,745.09 - Step 4: Simplify right side
236,175.12x = 41,960,537,935.16 - Step 5: Solve for x
x = 41,960,537,935.16/236,175.12 - Step 6: Final answer
x = 177,667.05
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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.