Finding the Fourth Proportional to 236,912.30, 326,938.99 and 129,482.34
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Solution
The fourth proportional to 236,912.30, 326,938.99 and 129,482.34 is: 178,685.63
Step by Step Solution
- Step 1: Write the proportion equation
236,912.30 : 326,938.99 = 129,482.34 : x - Step 2: Convert to fraction form
236,912.30/326,938.99 = 129,482.34/x - Step 3: Cross multiply
236,912.30x = 326,938.99 × 129,482.34 - Step 4: Simplify right side
236,912.30x = 42,332,823,504.04 - Step 5: Solve for x
x = 42,332,823,504.04/236,912.30 - Step 6: Final answer
x = 178,685.63
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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.