Finding the Fourth Proportional to 236,115.49, 325,829.73 and 128,683.12
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Solution
The fourth proportional to 236,115.49, 325,829.73 and 128,683.12 is: 177,577.45
Step by Step Solution
- Step 1: Write the proportion equation
236,115.49 : 325,829.73 = 128,683.12 : x - Step 2: Convert to fraction form
236,115.49/325,829.73 = 128,683.12/x - Step 3: Cross multiply
236,115.49x = 325,829.73 × 128,683.12 - Step 4: Simplify right side
236,115.49x = 41,928,786,245.16 - Step 5: Solve for x
x = 41,928,786,245.16/236,115.49 - Step 6: Final answer
x = 177,577.45
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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.