Finding the Fourth Proportional to 236,199.84, 325,958.24 and 128,769.28
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Solution
The fourth proportional to 236,199.84, 325,958.24 and 128,769.28 is: 177,702.95
Step by Step Solution
- Step 1: Write the proportion equation
236,199.84 : 325,958.24 = 128,769.28 : x - Step 2: Convert to fraction form
236,199.84/325,958.24 = 128,769.28/x - Step 3: Cross multiply
236,199.84x = 325,958.24 × 128,769.28 - Step 4: Simplify right side
236,199.84x = 41,973,407,874.87 - Step 5: Solve for x
x = 41,973,407,874.87/236,199.84 - Step 6: Final answer
x = 177,702.95
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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.