Finding the Fourth Proportional to 239,245.14, 358,923.30 and 81,474.96
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Solution
The fourth proportional to 239,245.14, 358,923.30 and 81,474.96 is: 122,231.37
Step by Step Solution
- Step 1: Write the proportion equation
239,245.14 : 358,923.30 = 81,474.96 : x - Step 2: Convert to fraction form
239,245.14/358,923.30 = 81,474.96/x - Step 3: Cross multiply
239,245.14x = 358,923.30 × 81,474.96 - Step 4: Simplify right side
239,245.14x = 29,243,261,510.57 - Step 5: Solve for x
x = 29,243,261,510.57/239,245.14 - Step 6: Final answer
x = 122,231.37
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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.