Finding the Fourth Proportional to 306,902.88, 423,524.79 and 170,938.44
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Solution
The fourth proportional to 306,902.88, 423,524.79 and 170,938.44 is: 235,894.39
Step by Step Solution
- Step 1: Write the proportion equation
306,902.88 : 423,524.79 = 170,938.44 : x - Step 2: Convert to fraction form
306,902.88/423,524.79 = 170,938.44/x - Step 3: Cross multiply
306,902.88x = 423,524.79 × 170,938.44 - Step 4: Simplify right side
306,902.88x = 72,396,666,903.93 - Step 5: Solve for x
x = 72,396,666,903.93/306,902.88 - Step 6: Final answer
x = 235,894.39
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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.