Finding the Fourth Proportional to 263,787.84, 395,697.84 and 86,313.60
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Solution
The fourth proportional to 263,787.84, 395,697.84 and 86,313.60 is: 129,475.66
Step by Step Solution
- Step 1: Write the proportion equation
263,787.84 : 395,697.84 = 86,313.60 : x - Step 2: Convert to fraction form
263,787.84/395,697.84 = 86,313.60/x - Step 3: Cross multiply
263,787.84x = 395,697.84 × 86,313.60 - Step 4: Simplify right side
263,787.84x = 34,154,105,082.62 - Step 5: Solve for x
x = 34,154,105,082.62/263,787.84 - Step 6: Final answer
x = 129,475.66
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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.