Finding the Fourth Proportional to 230,119.68, 317,561.40 and 129,517.68
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Solution
The fourth proportional to 230,119.68, 317,561.40 and 129,517.68 is: 178,732.28
Step by Step Solution
- Step 1: Write the proportion equation
230,119.68 : 317,561.40 = 129,517.68 : x - Step 2: Convert to fraction form
230,119.68/317,561.40 = 129,517.68/x - Step 3: Cross multiply
230,119.68x = 317,561.40 × 129,517.68 - Step 4: Simplify right side
230,119.68x = 41,129,815,785.55 - Step 5: Solve for x
x = 41,129,815,785.55/230,119.68 - Step 6: Final answer
x = 178,732.28
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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.