Finding the Fourth Proportional to 410,329.20, 615,551.40 and 129,817.20
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Solution
The fourth proportional to 410,329.20, 615,551.40 and 129,817.20 is: 194,744.02
Step by Step Solution
- Step 1: Write the proportion equation
410,329.20 : 615,551.40 = 129,817.20 : x - Step 2: Convert to fraction form
410,329.20/615,551.40 = 129,817.20/x - Step 3: Cross multiply
410,329.20x = 615,551.40 × 129,817.20 - Step 4: Simplify right side
410,329.20x = 79,909,159,204.08 - Step 5: Solve for x
x = 79,909,159,204.08/410,329.20 - Step 6: Final answer
x = 194,744.02
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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.