Finding the Fourth Proportional to 190,782.81, 285,986.84 and 106,583.31
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Solution
The fourth proportional to 190,782.81, 285,986.84 and 106,583.31 is: 159,770.28
Step by Step Solution
- Step 1: Write the proportion equation
190,782.81 : 285,986.84 = 106,583.31 : x - Step 2: Convert to fraction form
190,782.81/285,986.84 = 106,583.31/x - Step 3: Cross multiply
190,782.81x = 285,986.84 × 106,583.31 - Step 4: Simplify right side
190,782.81x = 30,481,423,490.72 - Step 5: Solve for x
x = 30,481,423,490.72/190,782.81 - Step 6: Final answer
x = 159,770.28
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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.