Finding the Fourth Proportional to 195,775.68, 270,282.36 and 128,902.08
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Solution
The fourth proportional to 195,775.68, 270,282.36 and 128,902.08 is: 177,958.56
Step by Step Solution
- Step 1: Write the proportion equation
195,775.68 : 270,282.36 = 128,902.08 : x - Step 2: Convert to fraction form
195,775.68/270,282.36 = 128,902.08/x - Step 3: Cross multiply
195,775.68x = 270,282.36 × 128,902.08 - Step 4: Simplify right side
195,775.68x = 34,839,958,391.31 - Step 5: Solve for x
x = 34,839,958,391.31/195,775.68 - Step 6: Final answer
x = 177,958.56
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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.