Finding the Fourth Proportional to 410,119.20, 615,265.20 and 129,664.80
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Solution
The fourth proportional to 410,119.20, 615,265.20 and 129,664.80 is: 194,524.52
Step by Step Solution
- Step 1: Write the proportion equation
410,119.20 : 615,265.20 = 129,664.80 : x - Step 2: Convert to fraction form
410,119.20/615,265.20 = 129,664.80/x - Step 3: Cross multiply
410,119.20x = 615,265.20 × 129,664.80 - Step 4: Simplify right side
410,119.20x = 79,778,239,104.96 - Step 5: Solve for x
x = 79,778,239,104.96/410,119.20 - Step 6: Final answer
x = 194,524.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.